[gcc r11-3458] libstdc++: Remove redundant -std=gnu++1z flags from makefile

[Jonathan Wakely]

https://gcc.gnu.org/g:473da7e22c809fda9e3b37557d6ee8c07b226ca4

commit r11-3458-g473da7e22c809fda9e3b37557d6ee8c07b226ca4
Author: Jonathan Wakely <jwakely@redhat.com>
Date:   Fri Sep 25 12:50:17 2020 +0100

    libstdc++: Remove redundant -std=gnu++1z flags from makefile
    
    Now that G++ defaults to gnu++17 we don't need special rules for
    compiling the C++17 allocation and deallocation functions.
    
    libstdc++-v3/ChangeLog:
    
            * libsupc++/Makefile.am: Remove redundant -std=gnu++1z flags.
            * libsupc++/Makefile.in: Regenerate.

Diff:
---
 libstdc++-v3/libsupc++/Makefile.am | 22 ----------------------
 libstdc++-v3/libsupc++/Makefile.in | 22 ----------------------
 2 files changed, 44 deletions(-)

diff --git a/libstdc++-v3/libsupc++/Makefile.am b/libstdc++-v3/libsupc++/Makefile.am
index 35ad3ae7799..091fe159d5a 100644
--- a/libstdc++-v3/libsupc++/Makefile.am
+++ b/libstdc++-v3/libsupc++/Makefile.am
@@ -128,28 +128,6 @@ cp-demangle.o: cp-demangle.c
 	$(C_COMPILE) -DIN_GLIBCPP_V3 -Wno-error -c $<
 
 
-# Use special rules for the C++17 sources so that the proper flags are passed.
-new_opa.lo: new_opa.cc
-	$(LTCXXCOMPILE) -std=gnu++1z -c $<
-new_opant.lo: new_opant.cc
-	$(LTCXXCOMPILE) -std=gnu++1z -c $<
-new_opva.lo: new_opva.cc
-	$(LTCXXCOMPILE) -std=gnu++1z -c $<
-new_opvant.lo: new_opvant.cc
-	$(LTCXXCOMPILE) -std=gnu++1z -c $<
-del_opa.lo: del_opa.cc
-	$(LTCXXCOMPILE) -std=gnu++1z -c $<
-del_opant.lo: del_opant.cc
-	$(LTCXXCOMPILE) -std=gnu++1z -c $<
-del_opsa.lo: del_opsa.cc
-	$(LTCXXCOMPILE) -std=gnu++1z -c $<
-del_opva.lo: del_opva.cc
-	$(LTCXXCOMPILE) -std=gnu++1z -c $<
-del_opvant.lo: del_opvant.cc
-	$(LTCXXCOMPILE) -std=gnu++1z -c $<
-del_opvsa.lo: del_opvsa.cc
-	$(LTCXXCOMPILE) -std=gnu++1z -c $<
-
 # AM_CXXFLAGS needs to be in each subdirectory so that it can be
 # modified in a per-library or per-sub-library way.  Need to manually
 # set this option because CONFIG_CXXFLAGS has to be after
diff --git a/libstdc++-v3/libsupc++/Makefile.in b/libstdc++-v3/libsupc++/Makefile.in
index 5106f8a246e..82056e4693c 100644
--- a/libstdc++-v3/libsupc++/Makefile.in
+++ b/libstdc++-v3/libsupc++/Makefile.in
@@ -957,28 +957,6 @@ cp-demangle.lo: cp-demangle.c
 cp-demangle.o: cp-demangle.c
 	$(C_COMPILE) -DIN_GLIBCPP_V3 -Wno-error -c $<
 
-# Use special rules for the C++17 sources so that the proper flags are passed.
-new_opa.lo: new_opa.cc
-	$(LTCXXCOMPILE) -std=gnu++1z -c $<
-new_opant.lo: new_opant.cc
-	$(LTCXXCOMPILE) -std=gnu++1z -c $<
-new_opva.lo: new_opva.cc
-	$(LTCXXCOMPILE) -std=gnu++1z -c $<
-new_opvant.lo: new_opvant.cc
-	$(LTCXXCOMPILE) -std=gnu++1z -c $<
-del_opa.lo: del_opa.cc
-	$(LTCXXCOMPILE) -std=gnu++1z -c $<
-del_opant.lo: del_opant.cc
-	$(LTCXXCOMPILE) -std=gnu++1z -c $<
-del_opsa.lo: del_opsa.cc
-	$(LTCXXCOMPILE) -std=gnu++1z -c $<
-del_opva.lo: del_opva.cc
-	$(LTCXXCOMPILE) -std=gnu++1z -c $<
-del_opvant.lo: del_opvant.cc
-	$(LTCXXCOMPILE) -std=gnu++1z -c $<
-del_opvsa.lo: del_opvsa.cc
-	$(LTCXXCOMPILE) -std=gnu++1z -c $<
-
 install-stdHEADERS: $(std_HEADERS)
 	@$(NORMAL_INSTALL)
 	$(mkinstalldirs) $(DESTDIR)$(stddir)