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authorJoel Brobecker <brobecker@gnat.com>2009-11-24 22:35:29 +0000
committerJoel Brobecker <brobecker@gnat.com>2009-11-24 22:35:29 +0000
commit2e078300ec035c5d0e7cab616e384fd8010a0c84 (patch)
treef593e8669195554cd6dd601027c579c4defa8b14 /config/zlib.m4
parent3dba1c9899d02d3dde715498124073c23638fd6f (diff)
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* zlib.m4: New file.
Diffstat (limited to 'config/zlib.m4')
-rw-r--r--config/zlib.m418
1 files changed, 18 insertions, 0 deletions
diff --git a/config/zlib.m4 b/config/zlib.m4
new file mode 100644
index 0000000..b017499
--- /dev/null
+++ b/config/zlib.m4
@@ -0,0 +1,18 @@
+dnl A function to check for zlib availability. zlib is used by default
+dnl unless the user configured with --disable-nls.
+
+AC_DEFUN([AM_ZLIB],
+[
+ # See if the user specified whether he wants zlib support or not.
+ AC_ARG_WITH(zlib,
+ [ --with-zlib include zlib support (auto/yes/no) [default=auto]],
+ [], [with_zlib=auto])
+
+ if test "$with_zlib" != "no"; then
+ AC_SEARCH_LIBS(zlibVersion, z, [AC_CHECK_HEADERS(zlib.h)])
+ if test "$with_zlib" = "yes" -a "$ac_cv_header_zlib_h" != "yes"; then
+ AC_MSG_ERROR([zlib (libz) library was explicitly requested but not found])
+ fi
+ fi
+])
+