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| author | Daniel Stenberg <daniel@haxx.se> | 2020-03-10 14:37:43 +0100 |
|---|---|---|
| committer | Daniel Stenberg <daniel@haxx.se> | 2020-03-11 08:47:59 +0100 |
| commit | f0f3952f551073450cb950d693b692d4eabe4e76 (patch) | |
| tree | 88ce6d10564942b8d79a8aab853d364eeaf5bb3d /m4 | |
| parent | b81e0b07784dc4c1e8d0a86194b9d28776d071c0 (diff) | |
configure: document 'compiler_num' for gcc
The CURL_CHECK_COMPILER_GNU_C function sets the number to MAJOR*100 +
MINOR and ignores the patch version, and since gcc version 7 it only
sets it to MAJOR*100.
Reported-by: Stepan Efremov
Ref: #5067
Closes #5069
Diffstat (limited to 'm4')
| -rw-r--r-- | m4/curl-compilers.m4 | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/m4/curl-compilers.m4 b/m4/curl-compilers.m4 index c64db4bc6..79460b6d2 100644 --- a/m4/curl-compilers.m4 +++ b/m4/curl-compilers.m4 @@ -5,7 +5,7 @@ # | (__| |_| | _ <| |___ # \___|\___/|_| \_\_____| # -# Copyright (C) 1998 - 2019, Daniel Stenberg, <daniel@haxx.se>, et al. +# Copyright (C) 1998 - 2020, Daniel Stenberg, <daniel@haxx.se>, et al. # # This software is licensed as described in the file COPYING, which # you should have received as part of this distribution. The terms @@ -151,8 +151,17 @@ AC_DEFUN([CURL_CHECK_COMPILER_DEC_C], [ dnl CURL_CHECK_COMPILER_GNU_C dnl ------------------------------------------------- -dnl Verify if compiler being used is GNU C. - +dnl Verify if compiler being used is GNU C +dnl +dnl $compiler_num will be set to MAJOR * 100 + MINOR for gcc less than version +dnl 7 and just $MAJOR * 100 for gcc version 7 and later. +dnl +dnl Examples: +dnl Version 1.2.3 => 102 +dnl Version 2.95 => 295 +dnl Version 4.7 => 407 +dnl Version 9.2.1 => 900 +dnl AC_DEFUN([CURL_CHECK_COMPILER_GNU_C], [ AC_REQUIRE([CURL_CHECK_COMPILER_INTEL_C])dnl AC_REQUIRE([CURL_CHECK_COMPILER_CLANG])dnl |