X-Git-Url: https://git.verplant.org/?a=blobdiff_plain;f=configure.ac;h=fc1e11c1e1e6eb1e2b4ac1b4a451bf3041d05f1b;hb=1eb9440b75f8c5cc4c33cbc145d44a557cbb4f2e;hp=ce091acaea10912366d61752c8c681f40cb53389;hpb=0532336600cf2abe1d25af8fbf5ad3cf3b6b31e0;p=collectd.git

diff --git a/configure.ac b/configure.ac
index ce091aca..fc1e11c1 100644
--- a/configure.ac
+++ b/configure.ac
@@ -54,6 +54,10 @@ AC_DISABLE_STATIC
 AC_PROG_LIBTOOL
 AC_PROG_LEX
 AC_PROG_YACC
+
+# Warn when pkg.m4 is missing
+m4_pattern_forbid([^_?PKG_[A-Z_]+$],[*** pkg.m4 missing, please install pkg-config])
+
 PKG_PROG_PKG_CONFIG
 
 AC_CHECK_PROG([have_protoc_c], [protoc-c], [yes], [no])