From 549508499c48085f1ce6db8fa8b6bea71db23c3d Mon Sep 17 00:00:00 2001
From: Jan Engelhardt <jengelh@medozas.de>
Date: Sat, 11 Dec 2010 03:36:46 +0100
Subject: [PATCH] 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.
---
 Makefile.iptrules.in | 6 +++---
 Makefile.mans.in     | 2 +-
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/Makefile.iptrules.in b/Makefile.iptrules.in
index 3b1ada5..53dbc92 100644
--- a/Makefile.iptrules.in
+++ b/Makefile.iptrules.in
@@ -46,15 +46,15 @@ subdirs_list := $(filter %/,${obj-m})
 .PHONY: all install clean
 
 all: ${targets}
-	@for i in ${subdirs_list}; do ${MAKE} -C $$i; done;
+	@for i in ${subdirs_list}; do ${MAKE} -C $$i || exit $$?; done;
 
 install: ${targets}
-	@for i in ${subdirs_list}; do ${MAKE} -C $$i $@; done;
+	@for i in ${subdirs_list}; do ${MAKE} -C $$i $@ || exit $$?; done;
 	install -dm0755 "${DESTDIR}/${xtlibdir}";
 	@for i in $^; do install -pm0755 $$i "${DESTDIR}/${xtlibdir}"; done;
 
 clean:
-	@for i in ${subdirs_list}; do ${MAKE} -C $$i $@; done;
+	@for i in ${subdirs_list}; do ${MAKE} -C $$i $@ || exit $$?; done;
 	rm -f *.oo *.so;
 
 lib%.so: lib%.oo
diff --git a/Makefile.mans.in b/Makefile.mans.in
index 68cc36a..dccadbb 100644
--- a/Makefile.mans.in
+++ b/Makefile.mans.in
@@ -23,7 +23,7 @@ man_run = \
 		name="$${name\#\#*/libxt_}"; \
 		if [ -f "$$ext" ]; then \
 			echo ".SS $$name"; \
-			cat "$$ext"; \
+			cat "$$ext" || exit $$?; \
 			continue; \
 		fi; \
 	done >$@;