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This enables building on Mac OS and FreeBSD by adding support to their
variants of the sed utility.
diff -urN gcc-5.2.0.orig/libgcc/config/t-hardfp gcc-5.2.0/libgcc/config/t-hardfp
--- gcc-5.2.0.orig/libgcc/config/t-hardfp 2015-01-05 04:33:28.000000000 -0800
+++ gcc-8.1.0/libgcc/config/t-hardfp 2016-04-06 12:04:51.000000000 -0700
@@ -59,21 +59,52 @@
hardfp_func_list := $(filter-out $(hardfp_exclusions),$(hardfp_func_list))
+HOST_OS ?= $(shell uname)
+
# Regexp for matching a floating-point mode.
+ifeq ($(HOST_OS), Darwin)
+hardfp_mode_regexp := $(shell echo $(hardfp_float_modes) | sed 's/ /|/g')
+else
+ifeq ($(HOST_OS), FreeBSD)
+hardfp_mode_regexp := $(shell echo $(hardfp_float_modes) | sed 's/ /|/g')
+else
hardfp_mode_regexp := $(shell echo $(hardfp_float_modes) | sed 's/ /\\|/g')
+endif
+endif
# Regexp for matching the end of a function name, after the last
# floating-point mode.
+ifeq ($(HOST_OS), Darwin)
+hardfp_suffix_regexp := $(shell echo $(hardfp_int_modes) 2 3 | sed 's/ /|/g')
+else
+ifeq ($(HOST_OS), FreeBSD)
+hardfp_suffix_regexp := $(shell echo $(hardfp_int_modes) 2 3 | sed 's/ /|/g')
+else
hardfp_suffix_regexp := $(shell echo $(hardfp_int_modes) 2 3 | sed 's/ /\\|/g')
+endif
+endif
# Add -D options to define:
# FUNC: the function name (e.g. __addsf3)
# OP: the function name without the leading __ and with the last
# floating-point mode removed (e.g. add3)
# TYPE: the last floating-point mode (e.g. sf)
+
+ifeq ($(HOST_OS), Darwin)
hardfp_defines_for = \
$(shell echo $1 | \
- sed 's/\(.*\)\($(hardfp_mode_regexp)\)\($(hardfp_suffix_regexp)\|\)$$/-DFUNC=__& -DOP_\1\3 -DTYPE=\2/')
+ sed -E 's/(.*)($(hardfp_mode_regexp))($(hardfp_suffix_regexp)|.*)$$/-DFUNC=__& -DOP_\1\3 -DTYPE=\2/')
+else
+ifeq ($(HOST_OS), FreeBSD)
+hardfp_defines_for = \
+ $(shell echo $1 | \
+ sed -r 's/(.*)($(hardfp_mode_regexp))($(hardfp_suffix_regexp)|.*)$$/-DFUNC=__& -DOP_\1\3 -DTYPE=\2/')
+else
+hardfp_defines_for = \
+ $(shell echo $1 | \
+ sed 's/\(.*\)\($(hardfp_mode_regexp)\)\($(hardfp_suffix_regexp)\|\)$$/-DFUNC=__& -DOP_\1\3 -DTYPE=\2/')
+endif
+endif
hardfp-o = $(patsubst %,%$(objext),$(hardfp_func_list))
$(hardfp-o): %$(objext): $(srcdir)/config/hardfp.c
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