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package/rtl_433: fix build with gcc 4.8

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Fix the following build failure with gcc 4.8 raised since bump to
version 21.12 in commit 84b29ef40b:

arm-none-linux-gnueabi-gcc: error: unrecognized command line option '-Wimplicit-fallthrough'

Fixes:
 - http://autobuild.buildroot.org/results/bea144f267215cd2dc27f235d6e3fb0adedb33ea

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
This commit is contained in:
Fabrice Fontaine 2021-12-26 15:29:22 +01:00 committed by Thomas Petazzoni
parent 2ddf6c6924
commit 7ee6c37939
2 changed files with 61 additions and 0 deletions
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27
package/rtl_433/0001-minor-Fix-a-compiler-flag-needs-GCC-7.patch Normal file
View File

@ -0,0 +1,27 @@
From 2010e8f949ab7b4555b99dbf184e149a3f33df46 Mon Sep 17 00:00:00 2001
From: "Christian W. Zuckschwerdt" <christian@zuckschwerdt.org>
Date: Fri, 24 Dec 2021 11:03:06 +0100
Subject: [PATCH] minor: Fix a compiler flag needs GCC 7
[Retrieved from:
https://github.com/merbanan/rtl_433/commit/2010e8f949ab7b4555b99dbf184e149a3f33df46]
Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
---
CMakeLists.txt | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/CMakeLists.txt b/CMakeLists.txt
index a3f11ac99..bfa6595ca 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -74,7 +74,9 @@ if(("${CMAKE_C_COMPILER_ID}" STREQUAL "GNU" OR "${CMAKE_C_COMPILER_ID}" MATCHES
ADD_DEFINITIONS(-pedantic)
ADD_DEFINITIONS(-Wshadow)
ADD_DEFINITIONS(-Wmissing-prototypes)
- ADD_DEFINITIONS(-Wimplicit-fallthrough)
+ if("${CMAKE_C_COMPILER_ID}" MATCHES "Clang" OR NOT "7.0.0" VERSION_GREATER CMAKE_C_COMPILER_VERSION)
+ ADD_DEFINITIONS(-Wimplicit-fallthrough)
+ endif()
#ADD_DEFINITIONS(-Wfloat-equal)
#ADD_DEFINITIONS(-Wbad-function-cast)
#ADD_DEFINITIONS(-Wdocumentation)

34
package/rtl_433/0002-src-optparse.c-fix-build-without-__has_attribute.patch Normal file
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@ -0,0 +1,34 @@
From 1b74826f155406f86846d5c97b3534aab87cf6da Mon Sep 17 00:00:00 2001
From: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Date: Sun, 26 Dec 2021 15:21:39 +0100
Subject: [PATCH] src/optparse.c: fix build without __has_attribute
Fix build failure without __has_attribute (e.g. gcc 4.8) which is raised
since
https://github.com/merbanan/rtl_433/commit/6c8af75c757712bd58b169317795484a72e9a16c
Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
[Upstream status: https://github.com/merbanan/rtl_433/pull/1918]
---
src/optparse.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/src/optparse.c b/src/optparse.c
index aa3d0b53..b5e2d37e 100644
--- a/src/optparse.c
+++ b/src/optparse.c
@@ -232,9 +232,11 @@ int atoi_time(char const *str, char const *error_hint)
}
// intentional fallthrough
#if defined(__GNUC__) || defined(__clang__)
+#if defined __has_attribute
#if __has_attribute(fallthrough)
__attribute__((fallthrough));
#endif
+#endif
#endif
case ':':
++colons;
--
2.33.0