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json-c: fix build without threads support

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An uClibc toolchain that does not support threads emits a warning when
_REENTRANT is defined. This breaks build with -Werror. Remove -Werror as
a workaround to fix the build.

This issue as been reported upstream
(https://github.com/json-c/json-c/issues/396).

Fixes:
http://autobuild.buildroot.net/results/606/60683141f2ef320a28820c4cd65d2b951123b147/
http://autobuild.buildroot.net/results/969/969faba96d94c1bda7e06b005d8f3a3f7175a0a2/

Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
This commit is contained in:
Baruch Siach 2017-12-31 00:31:29 +02:00 committed by Thomas Petazzoni
parent 4dc4f67237
commit ba3769c39a
2 changed files with 35 additions and 0 deletions
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32
package/json-c/0001-configure.ac-remove-Werror.patch Normal file
View File

@ -0,0 +1,32 @@
From 79d862ccaabc6620ce4b2783a44d6014ae837df9 Mon Sep 17 00:00:00 2001
From: Baruch Siach <baruch@tkos.co.il>
Date: Sun, 31 Dec 2017 00:01:37 +0200
Subject: [PATCH] configure.ac: remove -Werror
The unconditional _REENTRANT macro causes a warning when building with a
no-threads toolchain. Remove -Werror to fix the build.
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
---
Patch status: not upstreamable
Issue reported upstream: https://github.com/json-c/json-c/issues/396
---
configure.ac | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/configure.ac b/configure.ac
index 024c5aa0d687..74caa4d99e15 100644
--- a/configure.ac
+++ b/configure.ac
@@ -165,7 +165,7 @@ AS_IF([test "x$enable_Bsymbolic" = "xcheck"],
AS_IF([test "x$enable_Bsymbolic" = "xyes"], [JSON_BSYMBOLIC_LDFLAGS=-Wl[,]-Bsymbolic-functions])
AC_SUBST(JSON_BSYMBOLIC_LDFLAGS)
-AX_APPEND_COMPILE_FLAGS([-Wall -Werror -Wcast-qual -Wno-error=deprecated-declarations])
+AX_APPEND_COMPILE_FLAGS([-Wall -Wcast-qual -Wno-error=deprecated-declarations])
AX_APPEND_COMPILE_FLAGS([-Wextra -Wwrite-string -Wno-unused-parameter])
AX_APPEND_COMPILE_FLAGS([-D_GNU_SOURCE -D_REENTRANT])
--
2.15.1

3
package/json-c/json-c.mk
View File

@ -10,5 +10,8 @@ JSON_C_INSTALL_STAGING = YES
JSON_C_LICENSE = MIT
JSON_C_LICENSE_FILES = COPYING
# Patching configure.ac
JSON_C_AUTORECONF = YES
$(eval $(autotools-package))
$(eval $(host-autotools-package))