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-rw-r--r--configure.ac9
1 files changed, 9 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac
index 1ac45c7..f5538a0 100644
--- a/configure.ac
+++ b/configure.ac
@@ -24,6 +24,15 @@ AC_DISABLE_STATIC
AC_PROG_CC
AC_PROG_INSTALL
+
+m4_ifndef([PKG_PROG_PKG_CONFIG],
+ [m4_fatal([Could not locate the pkg-config autoconf
+ macros. These are usually located in /usr/share/aclocal/pkg.m4.
+ If your macros are in a different location, try setting the
+ environment variable AL_OPTS="-I/other/macro/dir" before running
+ ./autogen.sh or autoreconf again. Make sure pkg-config is installed.])])
+PKG_PROG_PKG_CONFIG
+
## compiler warnings
UL_WARN_ADD([-Wall])
UL_WARN_ADD([-Wextra])