brctl: fix build failure by s/strtotimeval/bb_strtotimeval/ (android has strtotimeval)

[oweals/busybox.git] / Makefile.flags

diff --git a/Makefile.flags b/Makefile.flags
index b3e13713d8934adfcaee2c8068522479bc75072a..c43c8dca86f00a0ce2a22b9fdfa48b42359cf8f0 100644 (file)
--- a/Makefile.flags
+++ b/Makefile.flags
@@ -97,10 +97,33 @@ CFLAGS += $(strip $(subst ",,$(CONFIG_EXTRA_CFLAGS)))
 #"))
 endif
 
+# 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
+
+# Android has no separate crypt library
+# gcc-4.2.1 fails if we try to feed C source on stdin:
+#  echo 'int main(void){return 0;}' | $(CC) $(CFLAGS) -lcrypt -o /dev/null -xc -
+# fall back to using a temp file:
+CRYPT_AVAILABLE := $(shell echo 'int main(void){return 0;}' >crypttest.c; $(CC) $(CFLAGS) -lcrypt -o /dev/null crypttest.c >/dev/null 2>&1 && echo "y"; rm crypttest.c)
+ifeq ($(CRYPT_AVAILABLE),y)
 LDLIBS += m crypt
+else
+LDLIBS += m
+endif
 
 ifeq ($(CONFIG_PAM),y)
-LDLIBS += pam pam_misc
+# libpam uses libpthread, so for static builds busybox must be linked to
+# libpthread. On some platforms that requires an explicit -lpthread, so
+# it should be in LDLIBS. For non-static builds, scripts/trylink will
+# take care of removing -lpthread if possible. (Not bothering to check
+# CONFIG_STATIC because even in a non-static build it could be that the
+# only libpam available is libpam.a, so -lpthread could still be
+# needed.)
+LDLIBS += pam pam_misc pthread
 endif
 
 ifeq ($(CONFIG_SELINUX),y)
@@ -125,6 +148,16 @@ ifneq (,$(findstring $(W_ELF2FLT),$(LDFLAGS) $(CFLAGS_busybox)))
 SKIP_STRIP = y
 endif
 
+ifneq ($(CONFIG_EXTRA_LDFLAGS),)
+EXTRA_LDFLAGS += $(strip $(subst ",,$(CONFIG_EXTRA_LDFLAGS)))
+#"))
+endif
+
+ifneq ($(CONFIG_EXTRA_LDLIBS),)
+LDLIBS += $(strip $(subst ",,$(CONFIG_EXTRA_LDLIBS)))
+#"))
+endif
+
 # Busybox is a stack-fatty so make sure we increase default size
 # TODO: use "make stksizes" to find & fix big stack users
 # (we stole scripts/checkstack.pl from the kernel... thanks guys!)