curl-compilers.m4: fix compiler_num for clang

"clang -dumpversion" always returns "4.2.1", the GCC version that clang
was initially compatible to. Use "clang -v" instead, which returns the
actual clang version.

Fixes https://github.com/curl/curl/issues/1522
Closes https://github.com/curl/curl/pull/1523
This commit is contained in:
Marcel Raad 2017-05-31 22:21:42 +02:00 committed by Marcel Raad
parent c5de7f50f7
commit 5598b0bd63
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1 changed files with 1 additions and 1 deletions

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@ -84,7 +84,7 @@ AC_DEFUN([CURL_CHECK_COMPILER_CLANG], [
if test "$curl_cv_have_def___clang__" = "yes"; then
AC_MSG_RESULT([yes])
compiler_id="CLANG"
clangver=`$CC -dumpversion`
clangver=`$CC -v 2>&1 | grep version | sed "s/.*version \([0-9]*\.[0-9]*\).*/\1/"`
clangvhi=`echo $clangver | cut -d . -f1`
clangvlo=`echo $clangver | cut -d . -f2`
compiler_num=`(expr $clangvhi "*" 100 + $clangvlo) 2>/dev/null`