path: root/scripts/kconfig/lxdialog/Makefile
diff options
authorSam Ravnborg <sam@mars.ravnborg.org>2006-01-21 12:03:09 +0100
committerSam Ravnborg <sam@mars.ravnborg.org>2006-01-21 12:03:09 +0100
commit3835f82183eab8b67ddda6b32c127859a546c82d (patch)
tree25d3e5179e13548b034213c54ed0a17db448e9b2 /scripts/kconfig/lxdialog/Makefile
parent3ee68c4af3fd7228c1be63254b9f884614f9ebb2 (diff)
kconfig: fix /dev/null breakage
While running "make menuconfig" and "make mrproper" some people experienced that /dev/null suddenly changed permissions or suddenly became a regular file. The main reason was that /dev/null was used as output to gcc in the check-lxdialog.sh script and gcc did some strange things with the output file; in this case /dev/null when it errorred out. Following patch implements a suggestion from Bryan O'Sullivan <bos@serpentine.com> to use gcc -print-file-name=libxxx.so. Also the Makefile is adjusted to not resolve value of HOST_EXTRACFLAGS and HOST_LOADLIBES until they are actually used. This prevents us from calling gcc when running make *clean/mrproper Thanks to Eyal Lebedinsky <eyal@eyal.emu.id.au> and Jean Delvare <khali@linux-fr.org> for the first error reports. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> ---
Diffstat (limited to 'scripts/kconfig/lxdialog/Makefile')
1 files changed, 5 insertions, 2 deletions
diff --git a/scripts/kconfig/lxdialog/Makefile b/scripts/kconfig/lxdialog/Makefile
index fae3e29fc92..bbf4887cff7 100644
--- a/scripts/kconfig/lxdialog/Makefile
+++ b/scripts/kconfig/lxdialog/Makefile
@@ -2,8 +2,11 @@
check-lxdialog := $(srctree)/$(src)/check-lxdialog.sh
-HOST_EXTRACFLAGS:= $(shell $(CONFIG_SHELL) $(check-lxdialog) -ccflags)
-HOST_LOADLIBES := $(shell $(CONFIG_SHELL) $(check-lxdialog) -ldflags $(HOSTCC))
+# Use reursively expanded variables so we do not call gcc unless
+# we really need to do so. (Do not call gcc as part of make mrproper)
+HOST_EXTRACFLAGS = $(shell $(CONFIG_SHELL) $(check-lxdialog) -ccflags)
+HOST_LOADLIBES = $(shell $(CONFIG_SHELL) $(check-lxdialog) -ldflags $(HOSTCC))