Currently minimal GNU supported GCC version is 7 (from May 2, 2017), buildbots
are using default GCC version 6 on Debian 9 (old stable), current Debian
stable 10 has GCC version 8.
Signed-off-by: Petr Štetiar <yn...@true.cz>
---
While adding CI support in C based projects, I've started adding -Wextra as
well, which seems to work just fine for gcc6+, but it's apparently causing
issues with older GCCs like for example gcc 4.8.5[1] on CentOS 7.
Although it's certainly possible to fix those issues and make gcc 4 usable, I
think, that it's not worth the additional effort and resources anymore.
1.
https://github.com/openwrt/openwrt/commit/4ba8f7b1ef1e4c0607185a41c06b51928c625d8b
README | 2 +-
include/prereq-build.mk | 18 ++++--------------
2 files changed, 5 insertions(+), 15 deletions(-)
diff --git a/README b/README
index c867c1fa4da8..6d11dd1188ff 100644
--- a/README
+++ b/README
@@ -11,7 +11,7 @@ To build your own firmware you need a Linux, BSD or MacOSX
system (case
sensitive filesystem required). Cygwin is unsupported because of the lack
of a case sensitive file system.
-You need gcc, binutils, bzip2, flex, python3.5+, perl, make, find, grep, diff,
+You need gcc6+, binutils, bzip2, flex, python3.5+, perl, make, find, grep,
diff,
unzip, gawk, getopt, subversion, libz-dev and libc headers installed.
1. Run "./scripts/feeds update -a" to obtain all the latest package definitions
diff --git a/include/prereq-build.mk b/include/prereq-build.mk
index 4c5991005634..58cbc0678fa1 100644
--- a/include/prereq-build.mk
+++ b/include/prereq-build.mk
@@ -27,12 +27,7 @@ $(eval $(call TestHostCommand,proper-umask, \
umask | grep -xE 0?0[012][012]))
$(eval $(call SetupHostCommand,gcc, \
- Please install the GNU C Compiler (gcc) 4.8 or later, \
- $(CC) -dumpversion | grep -E '^(4\.[8-9]|[5-9]\.?)', \
- gcc -dumpversion | grep -E '^(4\.[8-9]|[5-9]\.?)', \
- gcc48 --version | grep gcc, \
- gcc49 --version | grep gcc, \
- gcc5 --version | grep gcc, \
+ Please install the GNU C Compiler (gcc) 6 or later, \
gcc6 --version | grep gcc, \
gcc7 --version | grep gcc, \
gcc8 --version | grep gcc, \
@@ -40,18 +35,13 @@ $(eval $(call SetupHostCommand,gcc, \
gcc --version | grep -E 'Apple.(LLVM|clang)' ))
$(eval $(call TestHostCommand,working-gcc, \
- \nPlease reinstall the GNU C Compiler (4.8 or later) - \
+ \nPlease reinstall the GNU C Compiler (6 or later) - \
it appears to be broken, \
echo 'int main(int argc, char **argv) { return 0; }' | \
gcc -x c -o $(TMP_DIR)/a.out -))
$(eval $(call SetupHostCommand,g++, \
- Please install the GNU C++ Compiler (g++) 4.8 or later, \
- $(CXX) -dumpversion | grep -E '^(4\.[8-9]|[5-9]\.?)', \
- g++ -dumpversion | grep -E '^(4\.[8-9]|[5-9]\.?)', \
- g++48 --version | grep g++, \
- g++49 --version | grep g++, \
- g++5 --version | grep g++, \
+ Please install the GNU C++ Compiler (g++) 6 or later, \
g++6 --version | grep g++, \
g++7 --version | grep g++, \
g++8 --version | grep g++, \
@@ -59,7 +49,7 @@ $(eval $(call SetupHostCommand,g++, \
g++ --version | grep -E 'Apple.(LLVM|clang)' ))
$(eval $(call TestHostCommand,working-g++, \
- \nPlease reinstall the GNU C++ Compiler (4.8 or later) - \
+ \nPlease reinstall the GNU C++ Compiler (6 or later) - \
it appears to be broken, \
echo 'int main(int argc, char **argv) { return 0; }' | \
g++ -x c++ -o $(TMP_DIR)/a.out - -lstdc++ && \
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