118 lines
2.7 KiB
Plaintext
118 lines
2.7 KiB
Plaintext
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dnl From FIND_MOTIF and ACX_PTHREAD, without much understanding
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dnl
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dnl FIND_ZIP[ACTION-IF-FOUND[, ACTION-IF-NOT-FOUND]]
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dnl ------------------------------------------------
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dnl
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dnl Find ZIP libraries and headers
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dnl
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dnl Put includes stuff in ZIP_INCLUDES
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dnl Put link stuff in ZIP_LIBS
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dnl Define HAVE_ZIP if found
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dnl
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AC_DEFUN([FIND_ZIP], [
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AC_REQUIRE([AC_PATH_XTRA])
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ZIP_INCLUDES=""
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ZIP_LIBS=""
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AC_ARG_WITH(zip,
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AS_HELP_STRING([--without-zip], [build without libx (default: test)]))
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# Treat --without-zip like --without-zip-includes --without-zip-libraries.
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if test "$with_zip" = "no"; then
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ZIP_INCLUDES=no
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ZIP_LIBS=no
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fi
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AC_ARG_WITH(zip-includes,
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AS_HELP_STRING([--with-zip-includes=DIR], [libz includes are in DIR]),
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ZIP_INCLUDES="-I$withval")
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AC_ARG_WITH(zip-libraries,
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AS_HELP_STRING([--with-zip-libraries=DIR], [libz libraries are in DIR]),
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ZIP_LIBS="-L$withval -lz")
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AC_MSG_CHECKING(for ZIP)
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# Look for zlib.h
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if test "$ZIP_INCLUDES" = ""; then
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# Check the standard search path
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AC_TRY_COMPILE([#include <zlib.h>],[int a;],[
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ZIP_INCLUDES=""
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], [
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# zlib.h is not in the standard search path, try
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# $prefix
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zip_save_INCLUDES="$INCLUDES"
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INCLUDES="-I${prefix}/include $INCLUDES"
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AC_TRY_COMPILE([#include <zlib.h>],[int a;],[
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ZIP_INCLUDES="-I${prefix}/include"
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], [
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ZIP_INCLUDES="no"
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])
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INCLUDES=$zip_save_INCLUDES
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])
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fi
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# Now for the libraries
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if test "$ZIP_LIBS" = ""; then
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zip_save_LIBS="$LIBS"
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zip_save_INCLUDES="$INCLUDES"
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LIBS="-lz $LIBS"
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INCLUDES="$ZIP_INCLUDES $INCLUDES"
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# Try the standard search path first
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AC_TRY_LINK([#include <zlib.h>],[zlibVersion()], [
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ZIP_LIBS="-lz"
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], [
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# libz is not in the standard search path, try $prefix
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LIBS="-L${prefix}/lib $LIBS"
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AC_TRY_LINK([#include <zlib.h>],[zlibVersion()], [
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ZIP_LIBS="-L${prefix}/lib -lz"
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], [
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ZIP_LIBS=no
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])
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])
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LIBS="$zip_save_LIBS"
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INCLUDES="$zip_save_INCLUDES"
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fi
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AC_SUBST(ZIP_LIBS)
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AC_SUBST(ZIP_INCLUDES)
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# Print a helpful message
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zip_libraries_result="$ZIP_LIBS"
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zip_includes_result="$ZIP_INCLUDES"
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if test x"$zip_libraries_result" = x""; then
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zip_libraries_result="in default path"
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fi
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if test x"$zip_includes_result" = x""; then
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zip_includes_result="in default path"
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fi
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if test "$zip_libraries_result" = "no"; then
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zip_libraries_result="(none)"
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fi
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if test "$zip_includes_result" = "no"; then
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zip_includes_result="(none)"
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fi
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AC_MSG_RESULT([libraries $zip_libraries_result, headers $zip_includes_result])
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# Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND:
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if test "$ZIP_INCLUDES" != "no" && test "$ZIP_LIBS" != "no"; then
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AC_DEFINE(HAVE_ZIP,1,[Define if you have libz libraries and header files.])
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$1
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else
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ZIP_LIBS=""
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ZIP_INCLUDES=""
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$2
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fi
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])dnl
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