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authorTimm Bäder <tbaeder@redhat.com>2021-02-17 10:27:08 +0100
committerMark Wielaard <mark@klomp.org>2021-03-06 03:14:34 +0100
commit1645d4a7e62898167337235dda933e0cde373bd7 (patch)
tree98a39669611276f88a308f58ce2b9e81b4313f45 /config
parent00d92d0b6a495a81e4c585be7a41f10ef4b6d47c (diff)
downloadelfutils-1645d4a7e62898167337235dda933e0cde373bd7.tar.gz
build: Check for -Wno-packed-not-aligned support
Clang does not support this warning, so check for compiler support before using it. Signed-off-by: Timm Bäder <tbaeder@redhat.com>
Diffstat (limited to 'config')
-rw-r--r--config/ChangeLog6
-rw-r--r--config/eu.am10
2 files changed, 14 insertions, 2 deletions
diff --git a/config/ChangeLog b/config/ChangeLog
index cd8ff74c..0e179cbc 100644
--- a/config/ChangeLog
+++ b/config/ChangeLog
@@ -1,5 +1,11 @@
2021-02-17 Timm Bäder <tbaeder@redhat.com>
+ * eu.am (NO_PACKED_NOT_ALIGNED_WARNING): New variable.
+ (AM_CFLAGS): Use NO_PACKED_NOT_ALIGNED_WARNING.
+ (AM_CXXFLAGS): Likewise.
+
+2021-02-17 Timm Bäder <tbaeder@redhat.com>
+
* eu.am (TRAMPOLINES_WARNING): New variable.
(AM_CFLAGS): Use TRAMPOLINES_WARNING.
(AM_CXXFLAGS): Likewise.
diff --git a/config/eu.am b/config/eu.am
index 02512570..2c3e4571 100644
--- a/config/eu.am
+++ b/config/eu.am
@@ -79,6 +79,12 @@ else
TRAMPOLINES_WARNING=
endif
+if HAVE_NO_PACKED_NOT_ALIGNED_WARNING
+NO_PACKED_NOT_ALIGNED_WARNING=-Wno-packed-not-aligned
+else
+NO_PACKED_NOT_ALIGNED_WARNING=
+endif
+
AM_CFLAGS = -std=gnu99 -Wall -Wshadow -Wformat=2 \
-Wold-style-definition -Wstrict-prototypes $(TRAMPOLINES_WARNING) \
$(LOGICAL_OP_WARNING) $(DUPLICATED_COND_WARNING) \
@@ -86,7 +92,7 @@ AM_CFLAGS = -std=gnu99 -Wall -Wshadow -Wformat=2 \
$(if $($(*F)_no_Werror),,-Werror) \
$(if $($(*F)_no_Wunused),,-Wunused -Wextra) \
$(if $($(*F)_no_Wstack_usage),,$(STACK_USAGE_WARNING)) \
- $(if $($(*F)_no_Wpacked_not_aligned),-Wno-packed-not-aligned,) \
+ $(if $($(*F)_no_Wpacked_not_aligned),$(NO_PACKED_NOT_ALIGNED_WARNING),) \
$($(*F)_CFLAGS)
AM_CXXFLAGS = -std=c++11 -Wall -Wshadow \
@@ -96,7 +102,7 @@ AM_CXXFLAGS = -std=c++11 -Wall -Wshadow \
$(if $($(*F)_no_Werror),,-Werror) \
$(if $($(*F)_no_Wunused),,-Wunused -Wextra) \
$(if $($(*F)_no_Wstack_usage),,$(STACK_USAGE_WARNING)) \
- $(if $($(*F)_no_Wpacked_not_aligned),-Wno-packed-not-aligned,) \
+ $(if $($(*F)_no_Wpacked_not_aligned),$(NO_PACKED_NOT_ALIGNED_WARNING),) \
$($(*F)_CXXFLAGS)
COMPILE.os = $(filter-out -fprofile-arcs -ftest-coverage, $(COMPILE))