1From 521c3cc506b18c5c84d86e1e90d1daee39849b0c Mon Sep 17 00:00:00 2001 2From: William Roberts <william.c.roberts@intel.com> 3Date: Mon, 8 Feb 2021 11:57:28 -0600 4Subject: [PATCH] configure: make build gnu99 5 6Signed-off-by: William Roberts <william.c.roberts@intel.com> 7 8[Retrieved from: 9https://github.com/tpm2-software/tpm2-tools/commit/521c3cc506b18c5c84d86e1e90d1daee39849b0c 10and updated to set gnu99 instead of c99 as done by 11https://github.com/tpm2-software/tpm2-tools/commit/5d0267428e96989afce406d096994ec5091ee107] 12Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com> 13--- 14 configure.ac | 3 +++ 15 1 file changed, 3 insertions(+) 16 17diff --git a/configure.ac b/configure.ac 18index dc15b5595..25039a0d9 100644 19--- a/configure.ac 20+++ b/configure.ac 21@@ -287,6 +287,9 @@ AC_DEFUN([add_c_flag], [ 22 # -D_GNU_SOURCE is required for execvpe() in options.c 23 add_c_flag([-D_GNU_SOURCE], [AC_MSG_ERROR([Cannot enable -D_GNU_SOURCE])]) 24 25+# Enable gnu99 mode, since we use some of these features. 26+add_c_flag([-std=gnu99], [AC_MSG_ERROR([Cannot enable -std=gnu99])]) 27+ 28 # Best attempt compiler options that are on newer versions of GCC that 29 # we can't widely enforce without killing other peoples builds. 30 # Works with gcc only. Needs to be disabled on BSD and clang 31