zlib.m4 1.0 KB

12345678910111213141516171819202122232425262728293031323334353637383940
  1. AC_DEFUN([AM_PATH_LIBZ],
  2. [
  3. AC_ARG_WITH([libz-prefix],
  4. [ --with-libz-prefix=PREFIX Prefix where zlib installed (optional)],
  5. [libz_prefix=$withval],
  6. [libz_prefix=""])
  7. if test "x$libz_prefix" = "x"; then
  8. libz_prefix="/usr"
  9. fi
  10. LIBS_save=$LIBS
  11. CPPFLAGS_save=$CPPFLAGS
  12. PKG_CONFIG_PATH_save=$PKG_CONFIG_PATH
  13. PKG_CONFIG_PATH="$libz_prefix/lib/pkgconfig:$PKG_CONFIG_PATH"
  14. PKG_CHECK_MODULES([ZLIB], [zlib >= 1.2.3], [have_zlib=yes], [have_zlib=no])
  15. if test "x$have_zlib" != "xyes"; then
  16. libz_prefix_lib=$libz_prefix/lib
  17. libz_prefix_include=$libz_prefix/include
  18. LIBS="-L$libz_prefix_lib $LIBS"
  19. CPPFLAGS="-I$libz_prefix_include $CPPFLAGS"
  20. AC_CHECK_LIB([z], [zlibVersion], [have_zlib=yes])
  21. if test "x$have_zlib" = "xyes"; then
  22. ZLIB_LIBS="-L$libz_prefix_lib -lz"
  23. ZLIB_CFLAGS="-I$libz_prefix_include"
  24. fi
  25. fi
  26. if test "x$have_zlib" = "xyes"; then
  27. AC_DEFINE([HAVE_ZLIB], [1], [Define to 1 if you have zlib.])
  28. fi
  29. LIBS=$LIBS_save
  30. CPPFLAGS=$CPPFLAGS_save
  31. PKG_CONFIG_PATH=$PKG_CONFIG_PATH_save
  32. ])