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authorJunio C Hamano <gitster@pobox.com>2007-11-08 02:17:20 (GMT)
committerJunio C Hamano <gitster@pobox.com>2007-11-08 02:17:20 (GMT)
commit03800743156fe4f331a10c0983b9d633bed3a687 (patch)
tree56b7e501ff7ebaf057849108c839fff569aa8f39 /configure.ac
parent7481ebe9918771a9269c7fd0e91e855f18f2bc52 (diff)
parent609a2289d76fd9a7dddceabc63d1654fe61e0ffb (diff)
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Merge branch 'ds/maint-deflatebound'
* ds/maint-deflatebound: Improve accuracy of check for presence of deflateBound.
Diffstat (limited to 'configure.ac')
-rw-r--r--configure.ac20
1 files changed, 20 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac
index bd80517..53e9a17 100644
--- a/configure.ac
+++ b/configure.ac
@@ -182,6 +182,26 @@ AC_SUBST(NEEDS_LIBICONV)
AC_SUBST(NO_ICONV)
test -n "$NEEDS_LIBICONV" && LIBS="$LIBS -liconv"
#
+# Define NO_DEFLATE_BOUND if deflateBound is missing from zlib.
+AC_DEFUN([ZLIBTEST_SRC], [
+#include <zlib.h>
+
+int main(void)
+{
+ deflateBound(0, 0);
+ return 0;
+}
+])
+AC_MSG_CHECKING([for deflateBound in -lz])
+old_LIBS="$LIBS"
+LIBS="$LIBS -lz"
+AC_LINK_IFELSE(ZLIBTEST_SRC,
+ [AC_MSG_RESULT([yes])],
+ [AC_MSG_RESULT([no])
+ NO_DEFLATE_BOUND=yes])
+LIBS="$old_LIBS"
+AC_SUBST(NO_DEFLATE_BOUND)
+#
# Define NEEDS_SOCKET if linking with libc is not enough (SunOS,
# Patrick Mauritz).
AC_CHECK_LIB([c], [socket],