* [Buildroot] [PATCHv2] package/gcc/9.3.0: fix host-gcc-final when ccache is used @ 2020-05-20 22:45 Romain Naour 2020-05-21 12:12 ` Yann E. MORIN 0 siblings, 1 reply; 3+ messages in thread From: Romain Naour @ 2020-05-20 22:45 UTC (permalink / raw) To: buildroot As remported by several Buildroot users [1][2][3], the gcc build fail while running selftests makefile target. The problem only occurs when ccache is used with gcc 9 and 10, probably due to a race condition. While debuging with "make -p" we can notice that s-selftest-c target contain only "cc1" as dependency instead of cc1 and SELFTEST_DEPS [4]. s-selftest-c: cc1 While the build is failing, the s-selftest-c dependencies recipe is still running and reported as a bug by make. "Dependencies recipe running (THIS IS A BUG)." A change [5] in gcc 9 seems to introduce the problem since we can't reproduce this problem with gcc 8. For now add explicitely xgcc dependency to s-selftest-c and s-selftest-c++. It not clear why SELFTEST_DEPS is lost. [1] http://lists.busybox.net/pipermail/buildroot/2020-May/282171.html [2] http://lists.busybox.net/pipermail/buildroot/2020-May/282766.html [3] https://github.com/cirosantilli/linux-kernel-module-cheat/issues/108 [4] https://gcc.gnu.org/git/?p=gcc.git;a=blob;f=gcc/c/Make-lang.in;h=bfae6fd2549c4f728816cd355fa9739dcc08fcde;hb=033eb5671769a4c681a44aad08a454e667e08502#l120 [5] https://gcc.gnu.org/git/?p=gcc.git;a=commitdiff;h=033eb5671769a4c681a44aad08a454e667e08502 Signed-off-by: Romain Naour <romain.naour@gmail.com> Cc: Ben Dakin-Norris <ben.dakin-norris@navtechradar.com> Cc: Maxim Kochetkov <fido_max@inbox.ru> Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com> Cc: Yann E. MORIN <yann.morin.1998@free.fr> --- This is probably not the definitive fix, but it's a step forward to understand the issue. v2: fix typo in gcc/c/Make-lang.in add xgcc$(exeext) in C_SELFTEST_DEPS not in C_SELFTEST_FLAGS --- ...gcc-c-cp-add-missing-xgcc-dependency.patch | 72 +++++++++++++++++++ 1 file changed, 72 insertions(+) create mode 100644 package/gcc/9.3.0/0004-gcc-c-cp-add-missing-xgcc-dependency.patch diff --git a/package/gcc/9.3.0/0004-gcc-c-cp-add-missing-xgcc-dependency.patch b/package/gcc/9.3.0/0004-gcc-c-cp-add-missing-xgcc-dependency.patch new file mode 100644 index 0000000000..172cff9ab9 --- /dev/null +++ b/package/gcc/9.3.0/0004-gcc-c-cp-add-missing-xgcc-dependency.patch @@ -0,0 +1,72 @@ +From 06aa7c5b5495aa1470e6cda5ebcae0a8bdbef182 Mon Sep 17 00:00:00 2001 +From: Romain Naour <romain.naour@gmail.com> +Date: Wed, 20 May 2020 22:55:38 +0200 +Subject: [PATCH] gcc/{c,cp}: add missing xgcc dependency + +As remported by several Buildroot users [1][2][3], the gcc build +fail while running selftests makefile target. + +The problem only occurs when ccache is used with gcc 9 and 10, +probably due to a race condition. + +While debuging with "make -p" we can notice that s-selftest-c target +contain only "cc1" as dependency instead of cc1 and SELFTEST_DEPS [4]. + + s-selftest-c: cc1 + +While the build is failing, the s-selftest-c dependencies recipe is +still running and reported as a bug by make. + + "Dependencies recipe running (THIS IS A BUG)." + +A change [5] in gcc 9 seems to introduce the problem since we can't +reproduce this problem with gcc 8. + +For now add explicitely xgcc dependency to s-selftest-c and +s-selftest-c++. It not clear why SELFTEST_DEPS is lost. + +[1] http://lists.busybox.net/pipermail/buildroot/2020-May/282171.html +[2] http://lists.busybox.net/pipermail/buildroot/2020-May/282766.html +[3] https://github.com/cirosantilli/linux-kernel-module-cheat/issues/108 +[4] https://gcc.gnu.org/git/?p=gcc.git;a=blob;f=gcc/c/Make-lang.in;h=bfae6fd2549c4f728816cd355fa9739dcc08fcde;hb=033eb5671769a4c681a44aad08a454e667e08502#l120 +[5] https://gcc.gnu.org/git/?p=gcc.git;a=commitdiff;h=033eb5671769a4c681a44aad08a454e667e08502 + +Signed-off-by: Romain Naour <romain.naour@gmail.com> +Cc: Ben Dakin-Norris <ben.dakin-norris@navtechradar.com> +Cc: Maxim Kochetkov <fido_max@inbox.ru> +Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com> +Cc: Yann E. MORIN <yann.morin.1998@free.fr> +--- + gcc/c/Make-lang.in | 2 +- + gcc/cp/Make-lang.in | 2 +- + 2 files changed, 2 insertions(+), 2 deletions(-) + +diff --git a/gcc/c/Make-lang.in b/gcc/c/Make-lang.in +index 1422be6e013..42f8a538f1a 100644 +--- a/gcc/c/Make-lang.in ++++ b/gcc/c/Make-lang.in +@@ -117,7 +117,7 @@ c.srcman: + selftest-c: s-selftest-c + + C_SELFTEST_FLAGS = -xc $(SELFTEST_FLAGS) +-C_SELFTEST_DEPS = cc1$(exeext) $(SELFTEST_DEPS) ++C_SELFTEST_DEPS = cc1$(exeext) xgcc$(exeext) $(SELFTEST_DEPS) + + # Run the C selftests: + s-selftest-c: $(C_SELFTEST_DEPS) +diff --git a/gcc/cp/Make-lang.in b/gcc/cp/Make-lang.in +index 8fc1570659e..b2412544756 100644 +--- a/gcc/cp/Make-lang.in ++++ b/gcc/cp/Make-lang.in +@@ -170,7 +170,7 @@ c++.srcman: doc/g++.1 + # at each stage of the build: + selftest-c++: s-selftest-c++ + +-CPP_SELFTEST_DEPS = cc1plus$(exeext) $(SELFTEST_DEPS) ++CPP_SELFTEST_DEPS = cc1plus$(exeext) xgcc$(exeext) $(SELFTEST_DEPS) + CPP_SELFTEST_FLAGS = -xc++ $(SELFTEST_FLAGS) + + # Run the C++ selftests +-- +2.25.4 + -- 2.25.4 ^ permalink raw reply related [flat|nested] 3+ messages in thread
* [Buildroot] [PATCHv2] package/gcc/9.3.0: fix host-gcc-final when ccache is used 2020-05-20 22:45 [Buildroot] [PATCHv2] package/gcc/9.3.0: fix host-gcc-final when ccache is used Romain Naour @ 2020-05-21 12:12 ` Yann E. MORIN 2020-05-21 12:38 ` Yann E. MORIN 0 siblings, 1 reply; 3+ messages in thread From: Yann E. MORIN @ 2020-05-21 12:12 UTC (permalink / raw) To: buildroot Romain., All, On 2020-05-21 00:45 +0200, Romain Naour spake thusly: > As remported by several Buildroot users [1][2][3], the gcc build *reported > fail while running selftests makefile target. *fails Otherwise, see below, I think I have a better explanation and proposal for a fix... > The problem only occurs when ccache is used with gcc 9 and 10, > probably due to a race condition. > > While debuging with "make -p" we can notice that s-selftest-c target > contain only "cc1" as dependency instead of cc1 and SELFTEST_DEPS [4]. > > s-selftest-c: cc1 > > While the build is failing, the s-selftest-c dependencies recipe is > still running and reported as a bug by make. > > "Dependencies recipe running (THIS IS A BUG)." > > A change [5] in gcc 9 seems to introduce the problem since we can't > reproduce this problem with gcc 8. > > For now add explicitely xgcc dependency to s-selftest-c and > s-selftest-c++. It not clear why SELFTEST_DEPS is lost. > > [1] http://lists.busybox.net/pipermail/buildroot/2020-May/282171.html > [2] http://lists.busybox.net/pipermail/buildroot/2020-May/282766.html > [3] https://github.com/cirosantilli/linux-kernel-module-cheat/issues/108 > [4] https://gcc.gnu.org/git/?p=gcc.git;a=blob;f=gcc/c/Make-lang.in;h=bfae6fd2549c4f728816cd355fa9739dcc08fcde;hb=033eb5671769a4c681a44aad08a454e667e08502#l120 > [5] https://gcc.gnu.org/git/?p=gcc.git;a=commitdiff;h=033eb5671769a4c681a44aad08a454e667e08502 > > Signed-off-by: Romain Naour <romain.naour@gmail.com> > Cc: Ben Dakin-Norris <ben.dakin-norris@navtechradar.com> > Cc: Maxim Kochetkov <fido_max@inbox.ru> > Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com> > Cc: Yann E. MORIN <yann.morin.1998@free.fr> > --- > This is probably not the definitive fix, but it's a step forward to > understand the issue. > > v2: fix typo in gcc/c/Make-lang.in > add xgcc$(exeext) in C_SELFTEST_DEPS not in C_SELFTEST_FLAGS > --- > ...gcc-c-cp-add-missing-xgcc-dependency.patch | 72 +++++++++++++++++++ > 1 file changed, 72 insertions(+) > create mode 100644 package/gcc/9.3.0/0004-gcc-c-cp-add-missing-xgcc-dependency.patch > > diff --git a/package/gcc/9.3.0/0004-gcc-c-cp-add-missing-xgcc-dependency.patch b/package/gcc/9.3.0/0004-gcc-c-cp-add-missing-xgcc-dependency.patch > new file mode 100644 > index 0000000000..172cff9ab9 > --- /dev/null > +++ b/package/gcc/9.3.0/0004-gcc-c-cp-add-missing-xgcc-dependency.patch > @@ -0,0 +1,72 @@ > +From 06aa7c5b5495aa1470e6cda5ebcae0a8bdbef182 Mon Sep 17 00:00:00 2001 > +From: Romain Naour <romain.naour@gmail.com> > +Date: Wed, 20 May 2020 22:55:38 +0200 > +Subject: [PATCH] gcc/{c,cp}: add missing xgcc dependency > + > +As remported by several Buildroot users [1][2][3], the gcc build > +fail while running selftests makefile target. > + > +The problem only occurs when ccache is used with gcc 9 and 10, > +probably due to a race condition. > + > +While debuging with "make -p" we can notice that s-selftest-c target > +contain only "cc1" as dependency instead of cc1 and SELFTEST_DEPS [4]. > + > + s-selftest-c: cc1 The thing is (using gcc master as reference): - SELFTEST_DEPS is used in gcc/c/Make-lang.in to generate a dependency rule: 120 C_SELFTEST_DEPS = cc1$(exeext) $(SELFTEST_DEPS) 123 s-selftest-c: $(C_SELFTEST_DEPS) - gcc/c/Make-lang.in is included from gcc/Makefile.in on line 1757: 1757 include $(LANG_MAKEFRAGS) - SELFTESTS_DEPS is defined in gcc/Makefile.in line on 2009: 2009 SELFTEST_DEPS = $(GCC_PASSES) stmp-int-hdrs $(srcdir)/testsuite/selftests So, at the time the dependency rule on line 123 in gcc/c/Make-lang.in is generated, SELFTEST_DEPS is not yet set, hence the dependency is not generated. So I think the proper solution would be to have SELFTEST_DEPS, as well as all the variables in uses, defined before being used, i.e. before line 1757 in gcc/Makefile. Notes: - LANG_MAKEFRAGS is set in gcc/Makefile.in: 1129 LANG_MAKEFRAGS = @all_lang_makefrags@ - all_lang_makefrags is substitued from gcc/configure.ac, and set to list fragments in all enabled sub-directories: 6499 all_lang_makefrags="$all_lang_makefrags \$(srcdir)/$gcc_subdir/Make-lang.in" And commit 033eb56717 is indeed the culprit: before it, the per-language selftests were defined after SELFTEST_DEPS is defined, but moving these test to the per-language fragments actually moved them before the definition of SELFTEST_DEPS. Regards, Yann E. MORIN. > +While the build is failing, the s-selftest-c dependencies recipe is > +still running and reported as a bug by make. > + > + "Dependencies recipe running (THIS IS A BUG)." > + > +A change [5] in gcc 9 seems to introduce the problem since we can't > +reproduce this problem with gcc 8. > + > +For now add explicitely xgcc dependency to s-selftest-c and > +s-selftest-c++. It not clear why SELFTEST_DEPS is lost. > + > +[1] http://lists.busybox.net/pipermail/buildroot/2020-May/282171.html > +[2] http://lists.busybox.net/pipermail/buildroot/2020-May/282766.html > +[3] https://github.com/cirosantilli/linux-kernel-module-cheat/issues/108 > +[4] https://gcc.gnu.org/git/?p=gcc.git;a=blob;f=gcc/c/Make-lang.in;h=bfae6fd2549c4f728816cd355fa9739dcc08fcde;hb=033eb5671769a4c681a44aad08a454e667e08502#l120 > +[5] https://gcc.gnu.org/git/?p=gcc.git;a=commitdiff;h=033eb5671769a4c681a44aad08a454e667e08502 > + > +Signed-off-by: Romain Naour <romain.naour@gmail.com> > +Cc: Ben Dakin-Norris <ben.dakin-norris@navtechradar.com> > +Cc: Maxim Kochetkov <fido_max@inbox.ru> > +Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com> > +Cc: Yann E. MORIN <yann.morin.1998@free.fr> > +--- > + gcc/c/Make-lang.in | 2 +- > + gcc/cp/Make-lang.in | 2 +- > + 2 files changed, 2 insertions(+), 2 deletions(-) > + > +diff --git a/gcc/c/Make-lang.in b/gcc/c/Make-lang.in > +index 1422be6e013..42f8a538f1a 100644 > +--- a/gcc/c/Make-lang.in > ++++ b/gcc/c/Make-lang.in > +@@ -117,7 +117,7 @@ c.srcman: > + selftest-c: s-selftest-c > + > + C_SELFTEST_FLAGS = -xc $(SELFTEST_FLAGS) > +-C_SELFTEST_DEPS = cc1$(exeext) $(SELFTEST_DEPS) > ++C_SELFTEST_DEPS = cc1$(exeext) xgcc$(exeext) $(SELFTEST_DEPS) > + > + # Run the C selftests: > + s-selftest-c: $(C_SELFTEST_DEPS) > +diff --git a/gcc/cp/Make-lang.in b/gcc/cp/Make-lang.in > +index 8fc1570659e..b2412544756 100644 > +--- a/gcc/cp/Make-lang.in > ++++ b/gcc/cp/Make-lang.in > +@@ -170,7 +170,7 @@ c++.srcman: doc/g++.1 > + # at each stage of the build: > + selftest-c++: s-selftest-c++ > + > +-CPP_SELFTEST_DEPS = cc1plus$(exeext) $(SELFTEST_DEPS) > ++CPP_SELFTEST_DEPS = cc1plus$(exeext) xgcc$(exeext) $(SELFTEST_DEPS) > + CPP_SELFTEST_FLAGS = -xc++ $(SELFTEST_FLAGS) > + > + # Run the C++ selftests > +-- > +2.25.4 > + > -- > 2.25.4 > -- .-----------------.--------------------.------------------.--------------------. | Yann E. MORIN | Real-Time Embedded | /"\ ASCII RIBBON | Erics' conspiracy: | | +33 662 376 056 | Software Designer | \ / CAMPAIGN | ___ | | +33 561 099 427 `------------.-------: X AGAINST | \e/ There is no | | http://ymorin.is-a-geek.org/ | _/*\_ | / \ HTML MAIL | v conspiracy. | '------------------------------^-------^------------------^--------------------' ^ permalink raw reply [flat|nested] 3+ messages in thread
* [Buildroot] [PATCHv2] package/gcc/9.3.0: fix host-gcc-final when ccache is used 2020-05-21 12:12 ` Yann E. MORIN @ 2020-05-21 12:38 ` Yann E. MORIN 0 siblings, 0 replies; 3+ messages in thread From: Yann E. MORIN @ 2020-05-21 12:38 UTC (permalink / raw) To: buildroot Romain, All, On 2020-05-21 14:12 +0200, Yann E. MORIN spake thusly: > On 2020-05-21 00:45 +0200, Romain Naour spake thusly: [--SNIP--] > > diff --git a/package/gcc/9.3.0/0004-gcc-c-cp-add-missing-xgcc-dependency.patch b/package/gcc/9.3.0/0004-gcc-c-cp-add-missing-xgcc-dependency.patch > > new file mode 100644 > > index 0000000000..172cff9ab9 > > --- /dev/null > > +++ b/package/gcc/9.3.0/0004-gcc-c-cp-add-missing-xgcc-dependency.patch > > @@ -0,0 +1,72 @@ > > +From 06aa7c5b5495aa1470e6cda5ebcae0a8bdbef182 Mon Sep 17 00:00:00 2001 > > +From: Romain Naour <romain.naour@gmail.com> > > +Date: Wed, 20 May 2020 22:55:38 +0200 > > +Subject: [PATCH] gcc/{c,cp}: add missing xgcc dependency > > + > > +As remported by several Buildroot users [1][2][3], the gcc build > > +fail while running selftests makefile target. > > + > > +The problem only occurs when ccache is used with gcc 9 and 10, > > +probably due to a race condition. > > + > > +While debuging with "make -p" we can notice that s-selftest-c target > > +contain only "cc1" as dependency instead of cc1 and SELFTEST_DEPS [4]. > > + > > + s-selftest-c: cc1 > > The thing is (using gcc master as reference): > > - SELFTEST_DEPS is used in gcc/c/Make-lang.in to generate a dependency > rule: > 120 C_SELFTEST_DEPS = cc1$(exeext) $(SELFTEST_DEPS) > 123 s-selftest-c: $(C_SELFTEST_DEPS) > > - gcc/c/Make-lang.in is included from gcc/Makefile.in on line 1757: > 1757 include $(LANG_MAKEFRAGS) > > - SELFTESTS_DEPS is defined in gcc/Makefile.in line on 2009: > 2009 SELFTEST_DEPS = $(GCC_PASSES) stmp-int-hdrs $(srcdir)/testsuite/selftests > > So, at the time the dependency rule on line 123 in gcc/c/Make-lang.in is > generated, SELFTEST_DEPS is not yet set, hence the dependency is not > generated. > > So I think the proper solution would be to have SELFTEST_DEPS, as well > as all the variables in uses, defined before being used, i.e. before line > 1757 in gcc/Makefile. So: - SELFTEST_DEPS = $(GCC_PASSES) stmp-int-hdrs $(srcdir)/testsuite/selftests - GCC_PASSES is set on line 782 in gcc/Makefile.in 782 GCC_PASSES=xgcc$(exeext) specs - srcdir and exeext are all set very early by the autostuff machinery. So I think it should be safe to move the definition of SELFTEST_DEPS toward line 1732, before the per-language fragments. Regards, Yann E. MORIN. > Notes: > > - LANG_MAKEFRAGS is set in gcc/Makefile.in: > 1129 LANG_MAKEFRAGS = @all_lang_makefrags@ > > - all_lang_makefrags is substitued from gcc/configure.ac, and set to > list fragments in all enabled sub-directories: > 6499 all_lang_makefrags="$all_lang_makefrags \$(srcdir)/$gcc_subdir/Make-lang.in" > > And commit 033eb56717 is indeed the culprit: before it, the per-language > selftests were defined after SELFTEST_DEPS is defined, but moving these > test to the per-language fragments actually moved them before the > definition of SELFTEST_DEPS. > > Regards, > Yann E. MORIN. > > > +While the build is failing, the s-selftest-c dependencies recipe is > > +still running and reported as a bug by make. > > + > > + "Dependencies recipe running (THIS IS A BUG)." > > + > > +A change [5] in gcc 9 seems to introduce the problem since we can't > > +reproduce this problem with gcc 8. > > + > > +For now add explicitely xgcc dependency to s-selftest-c and > > +s-selftest-c++. It not clear why SELFTEST_DEPS is lost. > > + > > +[1] http://lists.busybox.net/pipermail/buildroot/2020-May/282171.html > > +[2] http://lists.busybox.net/pipermail/buildroot/2020-May/282766.html > > +[3] https://github.com/cirosantilli/linux-kernel-module-cheat/issues/108 > > +[4] https://gcc.gnu.org/git/?p=gcc.git;a=blob;f=gcc/c/Make-lang.in;h=bfae6fd2549c4f728816cd355fa9739dcc08fcde;hb=033eb5671769a4c681a44aad08a454e667e08502#l120 > > +[5] https://gcc.gnu.org/git/?p=gcc.git;a=commitdiff;h=033eb5671769a4c681a44aad08a454e667e08502 > > + > > +Signed-off-by: Romain Naour <romain.naour@gmail.com> > > +Cc: Ben Dakin-Norris <ben.dakin-norris@navtechradar.com> > > +Cc: Maxim Kochetkov <fido_max@inbox.ru> > > +Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com> > > +Cc: Yann E. MORIN <yann.morin.1998@free.fr> > > +--- > > + gcc/c/Make-lang.in | 2 +- > > + gcc/cp/Make-lang.in | 2 +- > > + 2 files changed, 2 insertions(+), 2 deletions(-) > > + > > +diff --git a/gcc/c/Make-lang.in b/gcc/c/Make-lang.in > > +index 1422be6e013..42f8a538f1a 100644 > > +--- a/gcc/c/Make-lang.in > > ++++ b/gcc/c/Make-lang.in > > +@@ -117,7 +117,7 @@ c.srcman: > > + selftest-c: s-selftest-c > > + > > + C_SELFTEST_FLAGS = -xc $(SELFTEST_FLAGS) > > +-C_SELFTEST_DEPS = cc1$(exeext) $(SELFTEST_DEPS) > > ++C_SELFTEST_DEPS = cc1$(exeext) xgcc$(exeext) $(SELFTEST_DEPS) > > + > > + # Run the C selftests: > > + s-selftest-c: $(C_SELFTEST_DEPS) > > +diff --git a/gcc/cp/Make-lang.in b/gcc/cp/Make-lang.in > > +index 8fc1570659e..b2412544756 100644 > > +--- a/gcc/cp/Make-lang.in > > ++++ b/gcc/cp/Make-lang.in > > +@@ -170,7 +170,7 @@ c++.srcman: doc/g++.1 > > + # at each stage of the build: > > + selftest-c++: s-selftest-c++ > > + > > +-CPP_SELFTEST_DEPS = cc1plus$(exeext) $(SELFTEST_DEPS) > > ++CPP_SELFTEST_DEPS = cc1plus$(exeext) xgcc$(exeext) $(SELFTEST_DEPS) > > + CPP_SELFTEST_FLAGS = -xc++ $(SELFTEST_FLAGS) > > + > > + # Run the C++ selftests > > +-- > > +2.25.4 > > + > > -- > > 2.25.4 > > > > -- > .-----------------.--------------------.------------------.--------------------. > | Yann E. MORIN | Real-Time Embedded | /"\ ASCII RIBBON | Erics' conspiracy: | > | +33 662 376 056 | Software Designer | \ / CAMPAIGN | ___ | > | +33 561 099 427 `------------.-------: X AGAINST | \e/ There is no | > | http://ymorin.is-a-geek.org/ | _/*\_ | / \ HTML MAIL | v conspiracy. | > '------------------------------^-------^------------------^--------------------' > _______________________________________________ > buildroot mailing list > buildroot at busybox.net > http://lists.busybox.net/mailman/listinfo/buildroot -- .-----------------.--------------------.------------------.--------------------. | Yann E. MORIN | Real-Time Embedded | /"\ ASCII RIBBON | Erics' conspiracy: | | +33 662 376 056 | Software Designer | \ / CAMPAIGN | ___ | | +33 561 099 427 `------------.-------: X AGAINST | \e/ There is no | | http://ymorin.is-a-geek.org/ | _/*\_ | / \ HTML MAIL | v conspiracy. | '------------------------------^-------^------------------^--------------------' ^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2020-05-21 12:38 UTC | newest] Thread overview: 3+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2020-05-20 22:45 [Buildroot] [PATCHv2] package/gcc/9.3.0: fix host-gcc-final when ccache is used Romain Naour 2020-05-21 12:12 ` Yann E. MORIN 2020-05-21 12:38 ` Yann E. MORIN
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