diff options
| -rw-r--r-- | configure.ac | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/configure.ac b/configure.ac index c91b820..b18de82 100644 --- a/configure.ac +++ b/configure.ac @@ -1,4 +1,4 @@ -AC_PREREQ([2.63]) +AC_PREREQ([2.59]) # Library versioning # Making releases: @@ -25,7 +25,10 @@ LT_PREREQ([2.2]) LT_INIT([disable-static win32-dll]) # Program checks -AC_PROG_CC_C99 +m4_ifdef([AC_PROG_CC_C99], [AC_PROG_CC_C99], + [AC_MSG_WARN([Attempt c99 workaround for old versions of autoconf]) + AC_PROG_CC + AX_TRY_CFLAGS([-std=c99], [AX_CFLAGS([-std=c99])])]) # Environment setup AC_CANONICAL_HOST |