53 lines
1.6 KiB
Diff
53 lines
1.6 KiB
Diff
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From 4e90d19ea3de6b8938d097d84f6df3fcf6eb0422 Mon Sep 17 00:00:00 2001
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From: Mark Stapp <mjs@voltanet.io>
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Date: Mon, 15 Feb 2021 13:59:02 -0500
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Subject: [PATCH] build: detect ICC, only try ICC options if ICC
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Some ICC command-line options can cause confusion for other
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compilers; test for ICC specifically, and only try to use those
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options if ICC is being used.
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Signed-off-by: Mark Stapp <mjs@voltanet.io>
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---
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configure.ac | 13 +++++++++++--
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1 file changed, 11 insertions(+), 2 deletions(-)
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diff --git a/configure.ac b/configure.ac
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index 266f37a1129..f3d1f38986a 100755
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--- a/configure.ac
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+++ b/configure.ac
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@@ -191,6 +191,11 @@ CXXFLAGS="$orig_cxxflags"
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AC_PROG_CC_C99
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dnl NB: see C11 below
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+dnl Some special handling for ICC later on
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+if test "$CC" = "icc"; then
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+ cc_is_icc="yes"
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+fi
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+
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PKG_PROG_PKG_CONFIG
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dnl it's 2019, sed is sed.
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@@ -252,7 +257,9 @@ AC_DEFUN([AC_LINK_IFELSE_FLAGS], [{
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dnl ICC won't bail on unknown options without -diag-error 10006
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dnl need to do this first so we get useful results for the other options
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-AC_C_FLAG([-diag-error 10006])
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+if test "$cc_is_icc" = "yes"; then
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+ AC_C_FLAG([-diag-error 10006])
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+fi
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dnl AC_PROG_CC_C99 may change CC to include -std=gnu99 or something
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ac_cc="$CC"
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@@ -335,7 +342,9 @@ AC_SUBST([CXX_COMPAT_CFLAGS])
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dnl ICC emits a broken warning for const char *x = a ? "b" : "c";
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dnl for some reason the string consts get 'promoted' to char *,
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dnl triggering a const to non-const conversion warning.
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-AC_C_FLAG([-diag-disable 3179])
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+if test "$cc_is_icc" = "yes"; then
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+ AC_C_FLAG([-diag-disable 3179])
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+fi
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if test "$enable_werror" = "yes" ; then
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WERROR="-Werror"
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