From ae0308fc048da958f8dc6e001cbc35b829c2e486 Mon Sep 17 00:00:00 2001
From: Sebastian Ullrich <sebasti@nullri.ch>
Date: Mon, 27 Sep 2021 17:40:59 +0200
Subject: [PATCH]  chore: leanc: do not pass linking flags when not linking,
 again

---
 src/bin/leanc.in | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/bin/leanc.in b/src/bin/leanc.in
index 2ea0aaf2ab..3c0aad51b1 100755
--- a/src/bin/leanc.in
+++ b/src/bin/leanc.in
@@ -1,4 +1,9 @@
 #!/usr/bin/env bash
 # used only for building Lean itself
 root=$(dirname $0)
-${LEAN_CC:-@CMAKE_C_COMPILER@} "-I$root/include" @LEANC_EXTRA_FLAGS@ "$@" "-L$root/lib/lean" "${LEANC_GMP:--lgmp}" @LEAN_EXTRA_LINKER_FLAGS@ -Wno-unused-command-line-argument
+ldflags=("-L$root/lib/lean" "${LEANC_GMP:--lgmp}" @LEAN_EXTRA_LINKER_FLAGS@)
+for arg in "@$"; do
+    # ccache dosn't like linker flags being passed here
+    [[ "$arg" = "-c" ]] && ldflags=()
+done
+${LEAN_CC:-@CMAKE_C_COMPILER@} "-I$root/include" @LEANC_EXTRA_FLAGS@ "$@" "${ldflags[@]}" -Wno-unused-command-line-argument