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authorNik Konyuchenko <spaun2002mobile@gmail.com>2021-06-24 07:51:21 (GMT)
committerNik Konyuchenko <spaun2002mobile@gmail.com>2021-06-24 07:58:32 (GMT)
commit05c67589851c70df19a94d5a00b6634681f08bcd (patch)
treeb7fe363792f97356f5ff6c02bcf26e1a52c93d15 /config
parentc7996054b5f7520b94839427f3f1f19acea409b0 (diff)
Fix build of older Glibc using GCC >=10
Issue #1535 GCC 10 changed the default to -fno-common, which leads to a linking error in GLibc older than 2.30. This change adds -fcommon cflag for the target GLibc versions <=2.29 and GCC >=10. This change also adds additional cflags for the target GLibc to disable new GCC11 checks that lead to compilation errors. Signed-off-by: Nik Konyuchenko <spaun2002mobile@gmail.com>
Diffstat (limited to 'config')
-rw-r--r--config/libc/glibc.in7
1 files changed, 7 insertions, 0 deletions
diff --git a/config/libc/glibc.in b/config/libc/glibc.in
index 5a3b1b8..b2cf0da 100644
--- a/config/libc/glibc.in
+++ b/config/libc/glibc.in
@@ -181,6 +181,7 @@ config GLIBC_CONFIGPARMS
config GLIBC_EXTRA_CFLAGS
string
prompt "extra target CFLAGS"
+ default "-Wno-missing-attributes -Wno-array-bounds -Wno-array-parameter -Wno-stringop-overflow -Wno-maybe-uninitialized" if GLIBC_2_29_or_older && GCC_11_or_later
default ""
help
Extra target CFLAGS to use when building.
@@ -416,4 +417,10 @@ config GLIBC_ENABLE_WERROR
endif
+config GLIBC_ENABLE_COMMON_FLAG
+ bool "Enable -fcommon flag for older version of glibc when using GCC >=10"
+ default y if GLIBC_2_29_or_older && GCC_10_or_later
+ default n if GLIBC_2_30_or_later || GCC_9_or_older
+
+
endif # KERNEL_LINUX