From 6c2a4607f0d0b20875ae586a56821107b3b40340 Mon Sep 17 00:00:00 2001
From: Vadim Zeitlin <vz-swig@zeitlins.org>
Date: Thu, 30 Sep 2021 18:12:50 +0200
Subject: [PATCH] Use -fPIE for clang builds

Executables can't be produced without this option using clang available
under Ubuntu 20.04, as linking fails with a lot of errors of the form

/usr/bin/ld: Swig/wrapfunc.o: relocation R_X86_64_32S against `.rodata'
can not be used when making a PIE object; recompile with -fPIE
---
 .github/workflows/ci.yml | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 7db336f53..1403c149f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -83,6 +83,9 @@ jobs:
           if test '${{ matrix.compiler }}' = 'clang'; then
             CC="clang"
             CXX="clang++"
+
+            CFLAGS="$CFLAGS -fPIE"
+            CXXFLAGS="$CXXFLAGS -fPIE"
           elif test -n "$GCC"; then
             CC="gcc-$GCC"
             CXX="g++-$GCC"