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configure: Allow host fragments to react to --enable-host-shared.

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This makes the host_shared value available to host makefile
fragments.

It uses this to adjust Darwin's mdynamic-no-pic in the case that
shared host resources are required.

Signed-off-by: Iain Sandoe <iain@sandoe.co.uk>

ChangeLog:

	* Makefile.in: Regenerate.
	* Makefile.tpl: Make the state of the configured host
	shared flag available to makefile fragements.

config/ChangeLog:

	* mh-darwin: Require a non-shared host configuration to
	enable  mdynamic-no-pic where that is supported.
This commit is contained in:
Iain Sandoe 2021-08-07 14:40:33 +01:00
parent d2aa4e0b3b
commit d39367fa82
3 changed files with 14 additions and 0 deletions
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3
Makefile.in
View File

@ -109,6 +109,9 @@ RPATH_ENVVAR = @RPATH_ENVVAR@
# executables in PATH.
GCC_SHLIB_SUBDIR = @GCC_SHLIB_SUBDIR@
# If the build should make suitable code for shared host resources.
host_shared = @host_shared@
# Build programs are put under this directory.
BUILD_SUBDIR = @build_subdir@
# This is set by the configure script to the arguments to use when configuring

3
Makefile.tpl
View File

@ -112,6 +112,9 @@ RPATH_ENVVAR = @RPATH_ENVVAR@
# executables in PATH.
GCC_SHLIB_SUBDIR = @GCC_SHLIB_SUBDIR@
# If the build should make suitable code for shared host resources.
host_shared = @host_shared@
# Build programs are put under this directory.
BUILD_SUBDIR = @build_subdir@
# This is set by the configure script to the arguments to use when configuring

8
config/mh-darwin
View File

@ -11,9 +11,15 @@
# non-bootstrapped compiler), later stages will be built by GCC which supports
# the required flags.
# We cannot use mdynamic-no-pic when building shared host resources.
ifeq (${host_shared},no)
BOOTSTRAP_TOOL_CAN_USE_MDYNAMIC_NO_PIC := $(shell \
$(CC) -S -xc /dev/null -o /dev/null -Werror -mno-dynamic-no-pic 2>/dev/null \
&& echo true)
else
BOOTSTRAP_TOOL_CAN_USE_MDYNAMIC_NO_PIC := false
endif
@if gcc-bootstrap
ifeq (${BOOTSTRAP_TOOL_CAN_USE_MDYNAMIC_NO_PIC},true)
@ -21,8 +27,10 @@ STAGE1_CFLAGS += -mdynamic-no-pic
else
STAGE1_CFLAGS += -fPIC
endif
ifeq (${host_shared},no)
# Add -mdynamic-no-pic to later stages when we know it is built with GCC.
BOOT_CFLAGS += -mdynamic-no-pic
endif
@endif gcc-bootstrap
@unless gcc-bootstrap