configure: Report an error when encountering invalid settings.

[sysdb.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index 4977fb5986b7c4902a120fce4415609731128976..c0a25c1dc9110a14025a37bb350bc0f19807b07a 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -195,10 +195,10 @@ dnl $GCC is based on some heuristics which might apply to clang as well.
 dnl However, clang does not support gcov.
 cc_is_gcc="no"
 case "x$CC" in
-       gcc)
+       xgcc)
                cc_is_gcc="yes"
                ;;
-       gcc-*)
+       xgcc-*)
                cc_is_gcc="yes"
                ;;
 esac
@@ -254,11 +254,15 @@ AC_ARG_WITH([libdbi],
                [AS_HELP_STRING([--with-libdbi], [libdbi support (default: auto)])],
                [with_libdbi="$withval"],
                [with_libdbi="yes"])
-if test "x$with_libdbi" = "xyes"; then
+if test "x$with_libdbi" = "xyes" || test "x$with_libdbi" = "xauto"; then
        AC_CHECK_HEADERS([dbi/dbi.h],
                        [with_libdbi="yes"],
                        [with_libdbi="no (dbi/dbi.h not found)"])
-fi
+else if test "x$with_libdbi" = "xno"; then
+       with_libdbi="$with_libdbi (disabled on command-line)"
+else
+       AC_MSG_ERROR([Invalid value for option --with-libdbi=$with_libdbi (expected "yes", "no", or "auto")])
+fi; fi
 if test "x$with_libdbi" = "xyes"; then
        AC_CHECK_LIB([dbi], [dbi_initialize],
                        [with_libdbi="yes"],
@@ -287,7 +291,12 @@ AC_ARG_WITH([readline],
 
 if test "x$readline_support" = "xyes"; then
        readline_support="auto"
-fi
+else if test "x$readline_support" != "xauto" \
+               && test "x$readline_support" != "xno" \
+               && test "x$readline_support" != "xlibedit" \
+               && test "x$readline_support" != "xlibreadline"; then
+       AC_MSG_ERROR([Invalid value for option --with-readline=$readline_support (expected "yes", "no", "auto", "libedit", or "libreadline")])
+fi; fi
 
 have_libedit="no"
 if test "x$readline_support" = "xauto" \
@@ -309,7 +318,7 @@ else
 fi
 
 have_libreadline="no"
-if test "x$have_libedit" = "xno"; then
+if test "x$have_libedit" != "xyes"; then
        if test "x$readline_support" = "xauto" \
                        || test "x$readline_support" = "xlibreadline"; then
                AC_CHECK_LIB([readline], [readline],