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authorJunio C Hamano <gitster@pobox.com>2021-12-11 01:35:14 +0300
committerJunio C Hamano <gitster@pobox.com>2021-12-11 01:35:14 +0300
commitd67fc4bf0ba89835c61efd1279c732fc640b3b2d (patch)
treeeb26076973292289415d3311e4e3db6f9135c06e /git-compat-util.h
parentb8148376a2dbb02ade419c2e3fdc478c1f0981dd (diff)
parent7bc341e21b566c6685b7d993ca80459f9994be38 (diff)
Merge branch 'bc/require-c99'
Weather balloon to break people with compilers that do not support C99. * bc/require-c99: git-compat-util: add a test balloon for C99 support
Diffstat (limited to 'git-compat-util.h')
-rw-r--r--git-compat-util.h13
1 files changed, 13 insertions, 0 deletions
diff --git a/git-compat-util.h b/git-compat-util.h
index c6bd2a84e5..98c4f2c81e 100644
--- a/git-compat-util.h
+++ b/git-compat-util.h
@@ -1,6 +1,19 @@
#ifndef GIT_COMPAT_UTIL_H
#define GIT_COMPAT_UTIL_H
+#if __STDC_VERSION__ - 0 < 199901L
+/*
+ * Git is in a testing period for mandatory C99 support in the compiler. If
+ * your compiler is reasonably recent, you can try to enable C99 support (or,
+ * for MSVC, C11 support). If you encounter a problem and can't enable C99
+ * support with your compiler (such as with "-std=gnu99") and don't have access
+ * to one with this support, such as GCC or Clang, you can remove this #if
+ * directive, but please report the details of your system to
+ * git@vger.kernel.org.
+ */
+#error "Required C99 support is in a test phase. Please see git-compat-util.h for more details."
+#endif
+
#ifdef USE_MSVC_CRTDBG
/*
* For these to work they must appear very early in each