From 1ccbd8fdbd2e367a702e48c8703b2f010d067b23 Mon Sep 17 00:00:00 2001
From: Khem Raj <raj.khem@gmail.com>
Date: Mon, 22 May 2023 18:16:24 -0700
Subject: [PATCH] plugins: Avoid absolute buildpaths in binaries

plugins seems to add CC to the plugins shared objects via compiler
cmdline which ends up in real code. Therefore scrub buildpaths from CC
and CFLAGS before passing them to plugin's build.

Upstream-Status: Submitted [https://gitlab.com/nbdkit/nbdkit/-/merge_requests/30]

Signed-off-by: Khem Raj <raj.khem@gmail.com>
---
 plugins/cc/Makefile.am | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/plugins/cc/Makefile.am b/plugins/cc/Makefile.am
index df8b5d15..80586a17 100644
--- a/plugins/cc/Makefile.am
+++ b/plugins/cc/Makefile.am
@@ -44,9 +44,12 @@ nbdkit_cc_plugin_la_SOURCES = \
 	$(top_srcdir)/include/nbdkit-plugin.h \
 	$(NULL)
 
+workdir := $(shell dirname $(abs_top_builddir))
+cc_no_sysroot := $(shell echo \"$(CC)\"|sed -e 's#$(workdir)#<WORKDIR>#g')
+cflags_no_sysroot := $(shell echo \"$(CFLAGS)\"|sed -e 's#$(workdir)#<WORKDIR>#g')
 nbdkit_cc_plugin_la_CPPFLAGS = \
-	-DCC="\"$(CC)\"" \
-	-DCFLAGS="\"$(CFLAGS)\"" \
+	-DCC=\"$(cc_no_sysroot)\" \
+	-DCFLAGS=\"$(cflags_no_sysroot)\" \
 	-I$(top_srcdir)/include \
 	-I$(top_builddir)/include \
 	-I$(top_srcdir)/common/include \
-- 
2.40.1