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authorDenys Vlasenko <vda.linux@googlemail.com>2012-03-07 23:20:01 (GMT)
committer Denys Vlasenko <vda.linux@googlemail.com>2012-03-07 23:20:01 (GMT)
commit39c2cb2e93e2acc75a5eb6dd91d81f79c787acd5 (patch)
treed4d381a2df3b8ec565813b87cbd8c82586d3df6b
parentbf6343796e834183ff1b0c1b9416676e8488afa5 (diff)
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build system: fix broken CONFIG_SYSROOT handling
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
-rw-r--r--Makefile.flags4
1 files changed, 3 insertions, 1 deletions
diff --git a/Makefile.flags b/Makefile.flags
index 68dfa57..92aae6f 100644
--- a/Makefile.flags
+++ b/Makefile.flags
@@ -104,7 +104,9 @@ else
LDLIBS += m
endif
-ifneq ($(CONFIG_SYSROOT),)
+# Note: both "" (string consisting of two quote chars) and empty string
+# are possible, and should be skipped below.
+ifneq ($(subst "",,$(CONFIG_SYSROOT)),)
CFLAGS += --sysroot=$(CONFIG_SYSROOT)
export SYSROOT=$(CONFIG_SYSROOT)
endif