From 912a8dcfc5369d840dcd6bf0f88ee0bac7d902d6 Mon Sep 17 00:00:00 2001 From: Nobuyoshi Nakada Date: Thu, 30 Sep 2021 18:24:37 +0900 Subject: [PATCH] Needs `AC_PROG_CC` Although `AC_PROG_CC_C99` has been obsolete, `AC_PROG_CC` is not and the latter is necessary not to make C++ compiler mandatory. --- configure.ac | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/configure.ac b/configure.ac index b24a8f59b0..c7059ee1ec 100644 --- a/configure.ac +++ b/configure.ac @@ -203,7 +203,7 @@ rb_test_CXXFLAGS=${CXXFLAGS+yes} # BSD's ports and MacPorts prefix GNU binutils with 'g' dnl Seems necessarily in order to add -std=gnu99 option for gcc 4.9. -m4_version_prereq([2.70], [], [AC_PROG_CC_C99]) +m4_version_prereq([2.70], [AC_PROG_CC], [AC_PROG_CC_C99]) AC_PROG_CXX AC_PROG_CPP -- 2.31.1