118 lines
2.8 KiB
Plaintext
118 lines
2.8 KiB
Plaintext
dnl From FIND_MOTIF and ACX_PTHREAD, without much understanding
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dnl
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dnl FIND_TIFF[ACTION-IF-FOUND[, ACTION-IF-NOT-FOUND]]
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dnl ------------------------------------------------
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dnl
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dnl Find TIFF libraries and headers
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dnl
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dnl Put compile stuff in TIFF_INCLUDES
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dnl Put link stuff in TIFF_LIBS
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dnl Define HAVE_TIFF if found
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dnl
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AC_DEFUN([FIND_TIFF], [
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AC_REQUIRE([AC_PATH_XTRA])
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TIFF_INCLUDES=""
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TIFF_LIBS=""
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AC_ARG_WITH(tiff,
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AS_HELP_STRING([--without-tiff], [build without libtiff (default: test)]))
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# Treat --without-tiff like --without-tiff-includes --without-tiff-libraries.
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if test "$with_tiff" = "no"; then
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TIFF_INCLUDES=no
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TIFF_LIBS=no
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fi
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AC_ARG_WITH(tiff-includes,
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AS_HELP_STRING([--with-tiff-includes=DIR], [libtiff includes are in DIR]),
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TIFF_INCLUDES="-I$withval")
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AC_ARG_WITH(tiff-libraries,
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AS_HELP_STRING([--with-tiff-libraries=DIR], [libtiff libraries are in DIR]),
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TIFF_LIBS="-L$withval -ltiff")
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AC_MSG_CHECKING(for TIFF)
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# Look for tiff.h
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if test "$TIFF_INCLUDES" = ""; then
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# Check the standard search path
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AC_TRY_COMPILE([#include <tiff.h>],[int a;],[
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TIFF_INCLUDES=""
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], [
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# tiff.h is not in the standard search path, try
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# $prefix
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tiff_save_CFLAGS="$CFLAGS"
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CFLAGS="-I${prefix}/include $CFLAGS"
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AC_TRY_COMPILE([#include <tiff.h>],[int a;],[
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TIFF_INCLUDES="-I${prefix}/include"
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], [
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TIFF_INCLUDES="no"
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])
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CFLAGS=$tiff_save_CFLAGS
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])
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fi
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# Now for the libraries
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if test "$TIFF_LIBS" = ""; then
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tiff_save_LIBS="$LIBS"
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tiff_save_CFLAGS="$CFLAGS"
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LIBS="-ltiff -lm $LIBS"
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CFLAGS="$TIFF_INCLUDES $CFLAGS"
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# Try the standard search path first
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AC_TRY_LINK([#include <tiff.h>],[TIFFGetVersion()], [
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TIFF_LIBS="-ltiff"
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], [
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# libtiff is not in the standard search path, try $prefix
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LIBS="-L${prefix}/lib $LIBS"
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AC_TRY_LINK([#include <tiff.h>],[TIFFGetVersion()], [
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TIFF_LIBS="-L${prefix}/lib -ltiff"
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], [
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TIFF_LIBS=no
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])
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])
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LIBS="$tiff_save_LIBS"
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CFLAGS="$tiff_save_CFLAGS"
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fi
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AC_SUBST(TIFF_LIBS)
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AC_SUBST(TIFF_INCLUDES)
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# Print a helpful message
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tiff_libraries_result="$TIFF_LIBS"
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tiff_includes_result="$TIFF_INCLUDES"
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if test x"$tiff_libraries_result" = x""; then
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tiff_libraries_result="in default path"
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fi
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if test x"$tiff_includes_result" = x""; then
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tiff_includes_result="in default path"
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fi
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if test "$tiff_libraries_result" = "no"; then
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tiff_libraries_result="(none)"
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fi
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if test "$tiff_includes_result" = "no"; then
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tiff_includes_result="(none)"
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fi
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AC_MSG_RESULT([libraries $tiff_libraries_result, headers $tiff_includes_result])
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# Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND:
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if test "$TIFF_INCLUDES" != "no" && test "$TIFF_LIBS" != "no"; then
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AC_DEFINE(HAVE_TIFF,1,[Define if you have tiff libraries and header files.])
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$1
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else
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TIFF_INCLUDES=""
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TIFF_LIBS=""
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$2
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fi
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])dnl
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