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-rw-r--r--dynconfig/config.m44
1 files changed, 4 insertions, 0 deletions
diff --git a/dynconfig/config.m4 b/dynconfig/config.m4
index 842a960cd6..6b5dfdbadd 100644
--- a/dynconfig/config.m4
+++ b/dynconfig/config.m4
@@ -19,6 +19,10 @@ AC_ARG_ENABLE(fhs,
[AS_HELP_STRING([--enable-fhs], [Turn on FHS support (default=no)])])
if test x$enable_fhs != xyes; then
+ if test x"$prefix" = x"/usr" -o x"$prefix" = x"/usr/local"; then
+ AC_MSG_WARN([Don't install directly under /usr or /usr/local without using the FHS option (--enable-fhs)])
+ AC_MSG_ERROR([invalid --prefix=$prefix])
+ fi
MODULESDIR="${libdir}"
INCLUDEDIR="${includedir}"
SETUPDIR="${datadir}/setup"