1 | # makefile for libpng.a and libpng12.so on Linux ELF with gcc
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2 | # Copyright (C) 1998, 1999, 2002, 2006, 2008 Greg Roelofs
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3 | # and Glenn Randers-Pehrson
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4 | # Copyright (C) 1996, 1997 Andreas Dilger
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5 | #
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6 | # This code is released under the libpng license.
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7 | # For conditions of distribution and use, see the disclaimer
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8 | # and license in png.h
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9 |
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10 | # Modified for Debian by Junichi Uekawa and Josselin Mouette
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11 | # Major modifications are:
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12 | # * link libpng explicitly with libz and libm
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13 | # * $(OLDSO).3 is a symlink rather than a different library
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14 | # * versioned symbols
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15 |
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16 | # Library name:
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17 | LIBNAME = libpng12
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18 | PNGMAJ = 0
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19 | PNGMIN = 1.2.54
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20 | PNGVER = $(PNGMAJ).$(PNGMIN)
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21 |
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22 | # Shared library names:
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23 | LIBSO=$(LIBNAME).so
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24 | LIBSOMAJ=$(LIBNAME).so.$(PNGMAJ)
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25 | LIBSOVER=$(LIBNAME).so.$(PNGVER)
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26 | OLDSO=libpng.so
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27 | OLDSOMAJ=libpng.so.3
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28 | OLDSOVER=libpng.so.3.$(PNGMIN)
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29 |
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30 | # Utilities:
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31 | AR_RC=ar rc
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32 | CC=gcc
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33 | MKDIR_P=mkdir -p
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34 | LN_SF=ln -sf
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35 | RANLIB=ranlib
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36 | RM_F=/bin/rm -f
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37 |
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38 | # where "make install" puts libpng12.a, libpng12.so*,
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39 | # libpng12/png.h and libpng12/pngconf.h
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40 | # Prefix must be a full pathname.
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41 | prefix=/usr/local
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42 | exec_prefix=$(prefix)
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43 |
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44 | # Where the zlib library and include files are located.
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45 | ZLIBLIB=/usr/local/lib
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46 | ZLIBINC=/usr/local/include
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47 | # ZLIBLIB=../zlib
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48 | # ZLIBINC=../zlib
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49 |
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50 | ALIGN=
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51 | # for i386:
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52 | #ALIGN=-malign-loops=2 -malign-functions=2
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53 |
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54 | WARNMORE=-Wwrite-strings -Wpointer-arith -Wshadow \
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55 | -Wmissing-declarations -Wtraditional -Wcast-align \
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56 | -Wstrict-prototypes -Wmissing-prototypes #-Wconversion
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57 |
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58 | # for pgcc version 2.95.1, -O3 is buggy; don't use it.
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59 |
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60 | CFLAGS=-W -Wall -D_REENTRANT -O2 \
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61 | $(ALIGN) # $(WARNMORE) -g -DPNG_DEBUG=5
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62 |
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63 | LDFLAGS=-L. -lpng12
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64 | LDFLAGS_A=libpng.a -lz -lm
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65 | LIBADDFLAGS=-lz -lm
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66 |
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67 |
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68 | INCPATH=$(prefix)/include
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69 | LIBPATH=$(exec_prefix)/lib
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70 | MANPATH=$(prefix)/man
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71 | BINPATH=$(exec_prefix)/bin
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72 |
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73 | # override DESTDIR= on the make install command line to easily support
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74 | # installing into a temporary location. Example:
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75 | #
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76 | # make install DESTDIR=/tmp/build/libpng
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77 | #
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78 | # If you're going to install into a temporary location
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79 | # via DESTDIR, $(DESTDIR)$(prefix) must already exist before
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80 | # you execute make install.
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81 | DESTDIR=
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82 |
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83 | DB=$(DESTDIR)$(BINPATH)
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84 | DI=$(DESTDIR)$(INCPATH)
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85 | DL=$(DESTDIR)$(LIBPATH)
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86 | DM=$(DESTDIR)$(MANPATH)
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87 |
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88 | OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
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89 | pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
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90 | pngwtran.o pngmem.o pngerror.o pngpread.o
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91 |
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92 | OBJSDLL = $(OBJS:.o=.pic.o)
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93 |
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94 | .SUFFIXES: .c .o .pic.o
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95 |
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96 | .c.pic.o:
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97 | $(CC) -c $(CFLAGS) -fPIC -o $@ $*.c
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98 |
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99 | all: libpng.a $(LIBSO) pngtest pngtest-static libpng.pc libpng-config
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100 |
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101 | libpng.a: $(OBJS)
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102 | $(AR_RC) $@ $(OBJS)
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103 | $(RANLIB) $@
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104 |
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105 | libpng.pc:
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106 | cat scripts/libpng.pc.in | sed -e s!@prefix@!$(prefix)! \
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107 | -e s!@exec_prefix@!$(exec_prefix)! \
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108 | -e s!@libdir@!$(LIBPATH)! \
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109 | -e s!@includedir@!$(INCPATH)! \
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110 | -e s!-lpng12!-lpng12\ -lz\ -lm! > libpng.pc
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111 |
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112 | libpng.syms: png.h pngconf.h
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113 | $(CC) $(CFLAGS) -E -DPNG_BUILDSYMS -DPNG_INTERNAL png.h |\
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114 | awk -F '[\t [\\]();]' -v PNGMAJ=$(PNGMAJ) 'BEGIN{printf("PNG12_%s {global:\n",PNGMAJ)}\
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115 | { for (i=1;i+2<=NF;++i)\
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116 | if ($$(i)=="PNG_FUNCTION_EXPORT" && $$(i+2)=="END")\
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117 | print $$(i+1) ";";\
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118 | for (i=1;i+1<=NF;++i)\
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119 | if ($$(i)=="PNG_DATA_EXPORT")\
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120 | print $$(i+1) ";";}\
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121 | END{print "local: *; };"}' >$@.new
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122 | $(RM_F) $@
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123 | mv $@.new $@
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124 |
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125 | libpng-config:
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126 | ( cat scripts/libpng-config-head.in; \
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127 | echo prefix=\"$(prefix)\"; \
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128 | echo I_opts=\"-I$(INCPATH)/$(LIBNAME)\"; \
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129 | echo L_opts=\"\"; \
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130 | echo R_opts=\"\"; \
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131 | echo libs=\"-lpng12\"; \
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132 | echo all_libs=\"-lpng12 $(LIBADDFLAGS)\"; \
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133 | cat scripts/libpng-config-body.in ) > libpng-config
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134 | chmod +x libpng-config
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135 |
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136 | $(LIBSO): $(LIBSOMAJ)
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137 | $(LN_SF) $(LIBSOMAJ) $(LIBSO)
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138 |
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139 | $(LIBSOMAJ): $(LIBSOVER)
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140 | $(LN_SF) $(LIBSOVER) $(LIBSOMAJ)
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141 |
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142 | $(LIBSOVER): $(OBJSDLL) libpng.syms
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143 | $(CC) -shared -Wl,-soname,$(LIBSOMAJ) \
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144 | -Wl,-version-script,libpng.syms \
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145 | -o $(LIBSOVER) \
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146 | $(OBJSDLL)
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147 |
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148 | $(OLDSOVER): $(OBJSDLL) libpng.syms
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149 | $(CC) -shared -Wl,-soname,$(OLDSOMAJ) \
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150 | -Wl,-version-script,libpng.syms \
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151 | -o $(OLDSOVER) \
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152 | $(OBJSDLL)
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153 |
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154 | pngtest: pngtest.o $(LIBSO)
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155 | $(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)
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156 |
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157 | pngtest-static: pngtest.o libpng.a
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158 | $(CC) -o pngtest-static $(CFLAGS) pngtest.o $(LDFLAGS_A)
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159 |
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160 | test: pngtest pngtest-static
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161 | @echo ""
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162 | @echo " Running pngtest dynamically linked with $(LIBSO):"
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163 | @echo ""
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164 | LD_LIBRARY_PATH=".:${LD_LIBRARY_PATH}" ./pngtest
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165 | @echo ""
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166 | @echo " Running pngtest statically linked with libpng.a:"
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167 | @echo ""
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168 | ./pngtest-static
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169 |
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170 | install-headers: png.h pngconf.h
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171 | -@if [ ! -d $(DI) ]; then $(MKDIR_P) $(DI); fi
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172 | -@if [ ! -d $(DI)/$(LIBNAME) ]; then $(MKDIR_P) $(DI)/$(LIBNAME); fi
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173 | cp png.h pngconf.h $(DI)/$(LIBNAME)
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174 | chmod 644 $(DI)/$(LIBNAME)/png.h $(DI)/$(LIBNAME)/pngconf.h
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175 | -@$(RM_F) $(DI)/png.h $(DI)/pngconf.h
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176 | -@$(RM_F) $(DI)/libpng
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177 | (cd $(DI); $(LN_SF) $(LIBNAME) libpng; $(LN_SF) $(LIBNAME)/* .)
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178 |
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179 | install-static: install-headers libpng.a
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180 | -@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
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181 | cp libpng.a $(DL)/$(LIBNAME).a
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182 | chmod 644 $(DL)/$(LIBNAME).a
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183 | -@$(RM_F) $(DL)/libpng.a
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184 | (cd $(DL); $(LN_SF) $(LIBNAME).a libpng.a)
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185 |
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186 | install-shared: install-headers $(LIBSOVER) libpng.pc \
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187 | $(OLDSOVER)
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188 | -@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
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189 | -@$(RM_F) $(DL)/$(LIBSOVER)* $(DL)/$(LIBSO)
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190 | -@$(RM_F) $(DL)/$(LIBSOMAJ)
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191 | -@$(RM_F) $(DL)/$(OLDSO)
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192 | -@$(RM_F) $(DL)/$(OLDSOMAJ)
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193 | -@$(RM_F) $(DL)/$(OLDSOVER)*
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194 | cp $(LIBSOVER) $(DL)
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195 | cp $(OLDSOVER) $(DL)
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196 | chmod 755 $(DL)/$(LIBSOVER)
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197 | chmod 755 $(DL)/$(OLDSOVER)
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198 | (cd $(DL); \
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199 | $(LN_SF) $(OLDSOVER) $(OLDSOMAJ); \
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200 | $(LN_SF) $(OLDSOMAJ) $(OLDSO); \
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201 | $(LN_SF) $(LIBSOVER) $(LIBSOMAJ); \
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202 | $(LN_SF) $(LIBSOMAJ) $(LIBSO))
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203 | -@if [ ! -d $(DL)/pkgconfig ]; then $(MKDIR_P) $(DL)/pkgconfig; fi
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204 | -@$(RM_F) $(DL)/pkgconfig/$(LIBNAME).pc
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205 | -@$(RM_F) $(DL)/pkgconfig/libpng.pc
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206 | cp libpng.pc $(DL)/pkgconfig/$(LIBNAME).pc
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207 | chmod 644 $(DL)/pkgconfig/$(LIBNAME).pc
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208 | (cd $(DL)/pkgconfig; $(LN_SF) $(LIBNAME).pc libpng.pc)
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209 |
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210 | install-man: libpng.3 libpngpf.3 png.5
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211 | -@if [ ! -d $(DM) ]; then $(MKDIR_P) $(DM); fi
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212 | -@if [ ! -d $(DM)/man3 ]; then $(MKDIR_P) $(DM)/man3; fi
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213 | -@$(RM_F) $(DM)/man3/libpng.3
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214 | -@$(RM_F) $(DM)/man3/libpngpf.3
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215 | cp libpng.3 $(DM)/man3
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216 | cp libpngpf.3 $(DM)/man3
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217 | -@if [ ! -d $(DM)/man5 ]; then $(MKDIR_P) $(DM)/man5; fi
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218 | -@$(RM_F) $(DM)/man5/png.5
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219 | cp png.5 $(DM)/man5
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220 |
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221 | install-config: libpng-config
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222 | -@if [ ! -d $(DB) ]; then $(MKDIR_P) $(DB); fi
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223 | -@$(RM_F) $(DB)/libpng-config
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224 | -@$(RM_F) $(DB)/$(LIBNAME)-config
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225 | cp libpng-config $(DB)/$(LIBNAME)-config
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226 | chmod 755 $(DB)/$(LIBNAME)-config
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227 | (cd $(DB); $(LN_SF) $(LIBNAME)-config libpng-config)
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228 |
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229 | install: install-static install-shared install-man install-config
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230 |
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231 | # If you installed in $(DESTDIR), test-installed won't work until you
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232 | # move the library to its final location. Use test-dd to test it
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233 | # before then.
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234 |
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235 | test-dd:
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236 | echo
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237 | echo Testing installed dynamic shared library in $(DL).
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238 | $(CC) -I$(DI) -I$(ZLIBINC) \
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239 | `$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
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240 | -L$(DL) -L$(ZLIBLIB) -Wl, -rpath,$(DL) -Wl,-rpath,$(ZLIBLIB) \
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241 | -o pngtestd `$(BINPATH)/$(LIBNAME)-config --ldflags`
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242 | ./pngtestd pngtest.png
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243 |
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244 | test-installed:
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245 | $(CC) -I$(ZLIBINC) \
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246 | `$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
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247 | -L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) \
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248 | -o pngtesti `$(BINPATH)/$(LIBNAME)-config --ldflags`
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249 | ./pngtesti pngtest.png
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250 |
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251 | clean:
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252 | $(RM_F) *.o libpng.a libpng.syms pngtest pngout.png libpng-config \
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253 | $(LIBSO) $(LIBSOMAJ)* pngtest-static pngtesti \
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254 | $(OLDSOVER) \
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255 | libpng.pc
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256 |
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257 | DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
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258 | writelock:
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259 | chmod a-w *.[ch35] $(DOCS) scripts/*
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260 |
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261 | # DO NOT DELETE THIS LINE -- make depend depends on it.
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262 |
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263 | png.o png.pic.o: png.h pngconf.h
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264 | pngerror.o pngerror.pic.o: png.h pngconf.h
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265 | pngrio.o pngrio.pic.o: png.h pngconf.h
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266 | pngwio.o pngwio.pic.o: png.h pngconf.h
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267 | pngmem.o pngmem.pic.o: png.h pngconf.h
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268 | pngset.o pngset.pic.o: png.h pngconf.h
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269 | pngget.o pngget.pic.o: png.h pngconf.h
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270 | pngread.o pngread.pic.o: png.h pngconf.h
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271 | pngrtran.o pngrtran.pic.o: png.h pngconf.h
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272 | pngrutil.o pngrutil.pic.o: png.h pngconf.h
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273 | pngtrans.o pngtrans.pic.o: png.h pngconf.h
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274 | pngwrite.o pngwrite.pic.o: png.h pngconf.h
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275 | pngwtran.o pngwtran.pic.o: png.h pngconf.h
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276 | pngwutil.o pngwutil.pic.o: png.h pngconf.h
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277 | pngpread.o pngpread.pic.o: png.h pngconf.h
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278 |
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279 | pngtest.o: png.h pngconf.h
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