From: Jan Engelhardt <jengelh@medozas.de>
Date: Sat, 11 Dec 2010 02:35:48 +0000 (+0100)
Subject: build: stop on error in subcommand
X-Git-Tag: v1.4.11~112^2
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a3f101331deb9314caa0cfa1061c925865e79380;p=thirdparty%2Fiptables.git

build: stop on error in subcommand

make only evaluates $? of an entire shell invocation. As such, if any
command in the chain can fail, $? needs to be thrown, and early so.

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
---

diff --git a/extensions/GNUmakefile.in b/extensions/GNUmakefile.in
index 7c479018..74a058c1 100644
--- a/extensions/GNUmakefile.in
+++ b/extensions/GNUmakefile.in
@@ -165,14 +165,14 @@ man_run    = \
 		if [ -f "$$f" ] && grep -Eq "$(3)|NFPROTO_UNSPEC" "$$cf"; then \
 			echo -e "\t+ $$f" >&2; \
 			echo ".SS $$ext"; \
-			cat "$$f"; \
+			cat "$$f" || exit $$?; \
 			continue; \
 		fi; \
 		f="${srcdir}/lib$(2)t_$$ext.man"; \
 		if [ -f "$$f" ]; then \
 			echo -e "\t+ $$f" >&2; \
 			echo ".SS $$ext"; \
-			cat "$$f"; \
+			cat "$$f" || exit $$?; \
 			continue; \
 		fi; \
 	done >$@;