When I build canadian compiler, I notice the bits/std.cc
without code. The build log show that some types and functions
in fenv.h cannot be found, the fenv.h in libstdc++ will include_next
fenv.h, but the cross compiler also has the fenv.h file in c++header
dirs, so the libc fenv.h cannot be included. I think the libstdc++ build
should with flag -nostdinc++.
libstdc++-v3/ChangeLog:
* src/c++11/Makefile.am: add flag -nostdinc++.
* src/c++11/Makefile.in: Likewise.
* src/c++20/Makefile.am: Likewise.
* src/c++20/Makefile.in: Likewise.
* src/c++23/Makefile.am: Likewise.
* src/c++23/Makefile.in: Likewise.
* src/c++26/Makefile.am: Likewise.
* src/c++26/Makefile.in: Likewise.
* src/c++98/Makefile.am: Likewise.
* src/c++98/Makefile.am: Likewise.
---
libstdc++-v3/src/c++11/Makefile.am | 2 +-
libstdc++-v3/src/c++11/Makefile.in | 2 +-
libstdc++-v3/src/c++20/Makefile.am | 2 +-
libstdc++-v3/src/c++20/Makefile.in | 2 +-
libstdc++-v3/src/c++23/Makefile.am | 2 +-
libstdc++-v3/src/c++23/Makefile.in | 2 +-
libstdc++-v3/src/c++26/Makefile.am | 2 +-
libstdc++-v3/src/c++26/Makefile.in | 2 +-
libstdc++-v3/src/c++98/Makefile.am | 2 +-
libstdc++-v3/src/c++98/Makefile.in | 2 +-
10 files changed, 10 insertions(+), 10 deletions(-)
diff --git a/libstdc++-v3/src/c++11/Makefile.am
b/libstdc++-v3/src/c++11/Makefile.am
index d29efacdcda..4174dd1ea0e 100644
--- a/libstdc++-v3/src/c++11/Makefile.am
+++ b/libstdc++-v3/src/c++11/Makefile.am
@@ -206,7 +206,7 @@ endif
# OPTIMIZE_CXXFLAGS on the compile line so that -O2 can be overridden
# as the occasion calls for it.
AM_CXXFLAGS = \
- -std=gnu++11 \
+ -std=gnu++11 -nostdinc++ \
$(glibcxx_lt_pic_flag) $(glibcxx_compiler_shared_flag) \
$(XTEMPLATE_FLAGS) $(VTV_CXXFLAGS) \
$(WARN_CXXFLAGS) $(OPTIMIZE_CXXFLAGS) $(CONFIG_CXXFLAGS)
diff --git a/libstdc++-v3/src/c++11/Makefile.in
b/libstdc++-v3/src/c++11/Makefile.in
index bd684bb4209..40a91edb734 100644
--- a/libstdc++-v3/src/c++11/Makefile.in
+++ b/libstdc++-v3/src/c++11/Makefile.in
@@ -564,7 +564,7 @@ sources = \
# OPTIMIZE_CXXFLAGS on the compile line so that -O2 can be overridden
# as the occasion calls for it.
AM_CXXFLAGS = \
- -std=gnu++11 \
+ -std=gnu++11 -nostdinc++ \
$(glibcxx_lt_pic_flag) $(glibcxx_compiler_shared_flag) \
$(XTEMPLATE_FLAGS) $(VTV_CXXFLAGS) \
$(WARN_CXXFLAGS) $(OPTIMIZE_CXXFLAGS) $(CONFIG_CXXFLAGS)
diff --git a/libstdc++-v3/src/c++20/Makefile.am
b/libstdc++-v3/src/c++20/Makefile.am
index cfd09bddffc..9b0910892b2 100644
--- a/libstdc++-v3/src/c++20/Makefile.am
+++ b/libstdc++-v3/src/c++20/Makefile.am
@@ -80,7 +80,7 @@ endif
# OPTIMIZE_CXXFLAGS on the compile line so that -O2 can be overridden
# as the occasion calls for it.
AM_CXXFLAGS = \
- -std=gnu++20 \
+ -std=gnu++20 -nostdinc++ \
$(glibcxx_lt_pic_flag) $(glibcxx_compiler_shared_flag) \
$(XTEMPLATE_FLAGS) $(VTV_CXXFLAGS) \
$(WARN_CXXFLAGS) $(OPTIMIZE_CXXFLAGS) $(CONFIG_CXXFLAGS) \
diff --git a/libstdc++-v3/src/c++20/Makefile.in
b/libstdc++-v3/src/c++20/Makefile.in
index 067419d2e48..96a4df9fe72 100644
--- a/libstdc++-v3/src/c++20/Makefile.in
+++ b/libstdc++-v3/src/c++20/Makefile.in
@@ -453,7 +453,7 @@ sources = tzdb.cc format.cc atomic.cc clock.cc syncbuf.cc
# OPTIMIZE_CXXFLAGS on the compile line so that -O2 can be overridden
# as the occasion calls for it.
AM_CXXFLAGS = \
- -std=gnu++20 \
+ -std=gnu++20 -nostdinc++ \
$(glibcxx_lt_pic_flag) $(glibcxx_compiler_shared_flag) \
$(XTEMPLATE_FLAGS) $(VTV_CXXFLAGS) \
$(WARN_CXXFLAGS) $(OPTIMIZE_CXXFLAGS) $(CONFIG_CXXFLAGS) \
diff --git a/libstdc++-v3/src/c++23/Makefile.am
b/libstdc++-v3/src/c++23/Makefile.am
index 5b2812abd22..7fb7f52c0c4 100644
--- a/libstdc++-v3/src/c++23/Makefile.am
+++ b/libstdc++-v3/src/c++23/Makefile.am
@@ -133,7 +133,7 @@ std.compat.o: std.compat.cc std.o
# OPTIMIZE_CXXFLAGS on the compile line so that -O2 can be overridden
# as the occasion calls for it.
AM_CXXFLAGS = \
- -std=gnu++23 \
+ -std=gnu++23 -nostdinc++ \
$(glibcxx_lt_pic_flag) $(glibcxx_compiler_shared_flag) \
$(XTEMPLATE_FLAGS) $(VTV_CXXFLAGS) \
$(WARN_CXXFLAGS) $(OPTIMIZE_CXXFLAGS) $(CONFIG_CXXFLAGS) \
diff --git a/libstdc++-v3/src/c++23/Makefile.in
b/libstdc++-v3/src/c++23/Makefile.in
index 75da9c008ab..cb59d5a6dbc 100644
--- a/libstdc++-v3/src/c++23/Makefile.in
+++ b/libstdc++-v3/src/c++23/Makefile.in
@@ -492,7 +492,7 @@ MODULES_FLAGS = -isystem ${glibcxx_srcdir}/include/backward
-fmodules \
# OPTIMIZE_CXXFLAGS on the compile line so that -O2 can be overridden
# as the occasion calls for it.
AM_CXXFLAGS = \
- -std=gnu++23 \
+ -std=gnu++23 -nostdinc++ \
$(glibcxx_lt_pic_flag) $(glibcxx_compiler_shared_flag) \
$(XTEMPLATE_FLAGS) $(VTV_CXXFLAGS) \
$(WARN_CXXFLAGS) $(OPTIMIZE_CXXFLAGS) $(CONFIG_CXXFLAGS) \
diff --git a/libstdc++-v3/src/c++26/Makefile.am
b/libstdc++-v3/src/c++26/Makefile.am
index f1acc3dd64c..e2b602531b5 100644
--- a/libstdc++-v3/src/c++26/Makefile.am
+++ b/libstdc++-v3/src/c++26/Makefile.am
@@ -54,7 +54,7 @@ endif
# OPTIMIZE_CXXFLAGS on the compile line so that -O2 can be overridden
# as the occasion calls for it.
AM_CXXFLAGS = \
- -std=gnu++26 \
+ -std=gnu++26 -nostdinc++ \
$(glibcxx_lt_pic_flag) $(glibcxx_compiler_shared_flag) \
$(XTEMPLATE_FLAGS) $(VTV_CXXFLAGS) \
$(WARN_CXXFLAGS) $(OPTIMIZE_CXXFLAGS) $(CONFIG_CXXFLAGS) \
diff --git a/libstdc++-v3/src/c++26/Makefile.in
b/libstdc++-v3/src/c++26/Makefile.in
index 13c3a03b236..253403b7905 100644
--- a/libstdc++-v3/src/c++26/Makefile.in
+++ b/libstdc++-v3/src/c++26/Makefile.in
@@ -446,7 +446,7 @@ sources = \
# OPTIMIZE_CXXFLAGS on the compile line so that -O2 can be overridden
# as the occasion calls for it.
AM_CXXFLAGS = \
- -std=gnu++26 \
+ -std=gnu++26 -nostdinc++ \
$(glibcxx_lt_pic_flag) $(glibcxx_compiler_shared_flag) \
$(XTEMPLATE_FLAGS) $(VTV_CXXFLAGS) \
$(WARN_CXXFLAGS) $(OPTIMIZE_CXXFLAGS) $(CONFIG_CXXFLAGS) \
diff --git a/libstdc++-v3/src/c++98/Makefile.am
b/libstdc++-v3/src/c++98/Makefile.am
index e816356d357..5ca73678482 100644
--- a/libstdc++-v3/src/c++98/Makefile.am
+++ b/libstdc++-v3/src/c++98/Makefile.am
@@ -206,7 +206,7 @@ parallel_settings.o: parallel_settings.cc
# OPTIMIZE_CXXFLAGS on the compile line so that -O2 can be overridden
# as the occasion calls for it.
AM_CXXFLAGS = \
- -std=gnu++98 \
+ -std=gnu++98 -nostdinc++ \
$(glibcxx_lt_pic_flag) $(glibcxx_compiler_shared_flag) \
$(XTEMPLATE_FLAGS) $(VTV_CXXFLAGS) \
$(WARN_CXXFLAGS) $(OPTIMIZE_CXXFLAGS) $(CONFIG_CXXFLAGS)
diff --git a/libstdc++-v3/src/c++98/Makefile.in
b/libstdc++-v3/src/c++98/Makefile.in
index c8df597f40d..6e88cfd29d9 100644
--- a/libstdc++-v3/src/c++98/Makefile.in
+++ b/libstdc++-v3/src/c++98/Makefile.in
@@ -540,7 +540,7 @@ PARALLEL_FLAGS = -D_GLIBCXX_PARALLEL
# OPTIMIZE_CXXFLAGS on the compile line so that -O2 can be overridden
# as the occasion calls for it.
AM_CXXFLAGS = \
- -std=gnu++98 \
+ -std=gnu++98 -nostdinc++ \
$(glibcxx_lt_pic_flag) $(glibcxx_compiler_shared_flag) \
$(XTEMPLATE_FLAGS) $(VTV_CXXFLAGS) \
$(WARN_CXXFLAGS) $(OPTIMIZE_CXXFLAGS) $(CONFIG_CXXFLAGS)
--
2.53.0
