From: Jan Palus <atler@pld-linux.org>
Date: Sat, 15 Oct 2022 22:16:07 +0000 (+0200)
Subject: test whether linker supports --reduce-memory-overheads before enabling it
X-Git-Tag: auto/th/llvm-15.0.2-1~4
X-Git-Url: http://git.pld-linux.org/?p=packages%2Fllvm.git;a=commitdiff_plain;h=eb891a9

test whether linker supports --reduce-memory-overheads before enabling it
---

diff --git a/llvm.spec b/llvm.spec
index 92e1572..c0aef8b 100644
--- a/llvm.spec
+++ b/llvm.spec
@@ -735,7 +735,9 @@ CPPFLAGS="%{rpmcppflags} -D_FILE_OFFSET_BITS=64"
 %if %{with lowmem}
 export CFLAGS="%{rpmcflags} -g0"
 export CXXFLAGS="%{rpmcxxflags} -g0"
+if echo 'int main(){}' | %{__cc} -x c %{rpmldflags} -Wl,--reduce-memory-overheads -o /dev/null - > /dev/null 2>&1; then
 export LDFLAGS="%{rpmldflags} -Wl,--reduce-memory-overheads"
+fi
 %endif
 
 %cmake .. \