From: Kurt Van Dijck <dev.kurt@vandijck-laurijssen.be>
Date: Thu, 26 Sep 2019 07:21:05 +0000 (+0200)
Subject: make: Avoid using host include for cross-compiling
X-Git-Tag: ppp-2.4.8~18
X-Git-Url: http://git.ozlabs.org/?p=ppp.git;a=commitdiff_plain;h=4e713175eae56cb863b39bc19d377f95a35823a8

make: Avoid using host include for cross-compiling

Prepend include paths with the toolchain's sysroot directory.
In case of a non-sysroot-aware toolchain, this does not help,
but does not break either.

Signed-off-by: Kurt Van Dijck <dev.kurt@vandijck-laurijssen.be>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
---

diff --git a/pppd/Makefile.linux b/pppd/Makefile.linux
index 8d5ce99..12a986e 100644
--- a/pppd/Makefile.linux
+++ b/pppd/Makefile.linux
@@ -125,7 +125,7 @@ CFLAGS   += -DHAS_SHADOW
 #LIBS     += -lshadow $(LIBS)
 endif
 
-ifneq ($(wildcard /usr/include/crypt.h),)
+ifneq ($(wildcard $(shell $CC --print-sysroot)/usr/include/crypt.h),)
 CFLAGS  += -DHAVE_CRYPT_H=1
 LIBS	+= -lcrypt
 endif
@@ -137,7 +137,7 @@ endif
 
 ifdef NEEDDES
 ifndef USE_CRYPT
-CFLAGS   += -I/usr/include/openssl
+CFLAGS   += -I$(shell $CC --print-sysroot)/usr/include/openssl
 LIBS     += -lcrypto
 else
 CFLAGS   += -DUSE_CRYPT=1