From b86e57b68363d108fe77c6fd588a275d2696cabe Mon Sep 17 00:00:00 2001
From: Hongxu Jia <hongxu.jia@windriver.com>
Date: Wed, 10 Jan 2018 14:43:20 +0800
Subject: [PATCH] src/Makefile.am: improve reproducibility

Remove build host references from the internally
generated file version.c. The references get compiled into
executables, which leads to non-reproducible builds.
The removed references (--sysroot, -fdebug-prefix-map) were
only used as part of the `wget --version' which do not have
side effect.

...
$ wget --version
GNU Wget 1.14 built on linux-gnu.

+digest +https +ipv6 +iri +large-file +nls +ntlm +opie +ssl/openssl

Wgetrc:
    /etc/wgetrc (system)
Locale: /usr/share/locale
Compile: gcc -DHAVE_CONFIG_H -DSYSTEM_WGETRC="/etc/wgetrc"
    -DLOCALEDIR="/usr/share/locale" -I. -I../lib -I../lib -O2 -g -pipe
    -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong
    --param=ssp-buffer-size=4 -grecord-gcc-switches -m64 -mtune=generic
Link: gcc -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions
    -fstack-protector-strong --param=ssp-buffer-size=4
    -grecord-gcc-switches -m64 -mtune=generic -lssl -lcrypto
    /usr/lib64/libssl.so /usr/lib64/libcrypto.so /usr/lib64/libz.so
    -ldl -lz -lz -lidn -luuid -lpcre ftp-opie.o openssl.o http-ntlm.o
    ../lib/libgnu.a
...

Upstream-Status: Inappropriate [oe-core specific]

Signed-off-by: Hongxu Jia <hongxu.jia@windriver.com>

sed use of DEBUG_PREFIX_MAP must treat whitespace the same as the
echo command building version.c or the expression match will fail.

Signed-off-by: Joe Slater <jslater@windriver.com>
---
 src/Makefile.am | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/Makefile.am b/src/Makefile.am
index 18ec622..38d252d 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -108,9 +108,13 @@ version.c:  $(wget_SOURCES) ../lib/libgnu.a
 	echo '#include "version.h"' >> $@
 	echo 'const char *version_string = "@VERSION@";' >> $@
 	echo 'const char *compilation_string = "'$(COMPILE)'";' \
+	    | sed -e "s,$(TOOLCHAIN_OPTIONS),,g" \
+	          -e "s,$$(echo $(DEBUG_PREFIX_MAP)),,g" \
 	    | $(ESCAPEQUOTE) >> $@
 	echo 'const char *link_string = "'$(CCLD) $(AM_CFLAGS) $(CFLAGS) \
 	$(AM_LDFLAGS) $(LDFLAGS) $(LIBS) $(wget_LDADD)'";' \
+	    | sed -e "s,$(TOOLCHAIN_OPTIONS),,g" \
+	          -e "s,$$(echo $(DEBUG_PREFIX_MAP)),,g" \
 	    | $(ESCAPEQUOTE) >> $@
 
 css.c: $(srcdir)/css.l