From edc9ec69b43c27955ee4f24db2e6808bb1a8974d Mon Sep 17 00:00:00 2001
From: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Date: Sun, 3 Feb 2019 23:20:43 +0100
Subject: [PATCH] libgeotiff/configure.ac: do not check for C++

Do not check for C++ compiler as libgeotiff is written in C otherwise
build will fail on toolchains without a working C++ compiler:

checking how to run the C++ preprocessor... /lib/cpp
configure: error: in `/data/buildroot/buildroot-test/instance-1/output/build/libgeotiff-1.4.2':
configure: error: C++ preprocessor "/lib/cpp" fails sanity check

Fixes:
 - http://autobuild.buildroot.org/results/72f1c5c1b8fc337a1cff4b280abe99afd65f945b

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
[Upstream status: https://github.com/OSGeo/libgeotiff/pull/9]
---
 libgeotiff/configure.ac | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/configure.ac b/configure.ac
index a334416..4ebbd6f 100644
--- a/configure.ac
+++ b/configure.ac
@@ -25,8 +25,6 @@ dnl #########################################################################
 AM_INIT_AUTOMAKE
 AM_MAINTAINER_MODE
 AC_PROG_CC
-AC_PROG_CXX
-AC_PROG_CXXCPP
 AC_PROG_INSTALL
 AC_PROG_LN_S
 AC_PROG_MAKE_SET
@@ -46,7 +44,6 @@ dnl #########################################################################
 m4_define([debug_default],[no])
 
 CFLAGS="$CFLAGS"
-CXXFLAGS="$CXXFLAGS"
 
 dnl We want to honor the users wishes with regard to linking.
 LIBS="$LDFLAGS $LIBS"
@@ -82,11 +79,9 @@ AC_MSG_CHECKING([for debug enabled])
 
 if test "x$enable_debug" = "xyes"; then
     CFLAGS="$CFLAGS -g -DDEBUG -Wall"
-    CXXFLAGS="$CXXFLAGS -g -DDEBUG -Wall"
     AC_MSG_RESULT(yes)
 else
     CFLAGS="$CFLAGS -O3 -DNDEBUG"
-    CXXFLAGS="$CXXFLAGS -O3 -DNDEBUG"
     AC_MSG_RESULT(no)
 fi
 
@@ -367,7 +362,6 @@ LOC_MSG()
 LOC_MSG([  Version..................: ${RELEASE_VERSION}])
 LOC_MSG([  Installation directory...: ${prefix}])
 LOC_MSG([  C compiler...............: ${CC} ${CFLAGS}])
-LOC_MSG([  C++ compiler.............: ${CXX} ${CXXFLAGS}])
 
 LOC_MSG([  Debugging support........: ${enable_debug}])
 LOC_MSG()
-- 
2.14.1