hg: jdk/sandbox: 4 new changesets

[chris.hegarty at oracle.com]

Changeset: f9f766fa1125
Author:    ihse
Date:      2020-02-06 13:38 +0100
URL:       https://hg.openjdk.java.net/jdk/sandbox/rev/f9f766fa1125

8218480: Automatically add -Werror in FLAGS_COMPILER_CHECK_ARGUMENTS
Reviewed-by: erikj

! make/autoconf/flags-cflags.m4
! make/autoconf/flags.m4

Changeset: 227542943648
Author:    ihse
Date:      2020-02-06 13:40 +0100
URL:       https://hg.openjdk.java.net/jdk/sandbox/rev/227542943648

8238542: When warning about C/C++ compiler mismatch, be clear if this is about build compilers
Reviewed-by: erikj

! make/autoconf/toolchain.m4

Changeset: 885b23ef907d
Author:    ihse
Date:      2020-02-06 13:40 +0100
URL:       https://hg.openjdk.java.net/jdk/sandbox/rev/885b23ef907d

8212986: Make Visual Studio compiler check less strict
Reviewed-by: erikj

! make/autoconf/toolchain.m4

Changeset: c35eac313084
Author:    ihse
Date:      2020-02-06 13:41 +0100
URL:       https://hg.openjdk.java.net/jdk/sandbox/rev/c35eac313084

8201349: build broken when configured with --with-zlib=bundled on gcc 7.3
Reviewed-by: erikj

! make/lib/CoreLibraries.gmk