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Fix fatal error: math.h no such file or directory #3017

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Feb 26, 2019
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Fix fatal error: math.h no such file or directory #3017

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38 changes: 37 additions & 1 deletion Makefile-ponyc
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Original file line number Diff line number Diff line change
Expand Up @@ -435,7 +435,43 @@ endif
# (3) a list of include directories for a set of libraries
# (4) a list of the libraries to link against
llvm.ldflags := -L$(CROSS_SYSROOT)$(subst -L,,$(shell $(LLVM_CONFIG) --ldflags $(LLVM_LINK_STATIC)))
llvm.include := $(CROSS_SYSROOT)$(shell sh -c "$(LLVM_CONFIG) --cflags $(LLVM_LINK_STATIC) | grep -oE -- '(^| )-I\s*\S+' | sed 's/^\s*-I\s*/-isystem /g'")

# Get cflags using llvm-config
llvm.get_cflags := $(LLVM_CONFIG) --cflags $(LLVM_LINK_STATIC)
llvm.cflags := $(shell sh -c "$(llvm.get_cflags)")

# Get include dirs using grep & sed to extract "-I x/xx" entries
llvm.get_include_dirs := "echo '$(llvm.cflags)' | grep -oE -- '(^| )-I\s*\S+' | sed 's/^\s*-I\s*//'"
llvm.include_dirs := $(shell sh -c $(llvm.get_include_dirs))

# Get the compiler output of verbose "-v" and preprocess, "-E" parameters which
# contains the search paths.
verbose_preprocess_string := $(shell echo | $(CC) -v -E - 2>&1)

# We must escape any double quotes, ", and any hash, #, characters.
quoteDblQuote := $(subst ",\",$(verbose_preprocess_string))
quoted_verbose_preprocess_string := $(subst \#,\\\#,$(quoteDblQuote))

# Now use a sed command line to extract the search paths from the
# quoted verbose preprocess string
get_search_paths := sed 's/\(.*\)search starts here:\(.*\)End of search list.\(.*\)/\2/'
search_paths := $(shell echo "$(quoted_verbose_preprocess_string)" | $(get_search_paths))
#$(warning search_paths="$(search_paths)")

# Note: $(search_paths) is padded with a space on front and back so
# that when we iterate the ${inc_dir} variable is guaranteed to have
# a space at the beginning and end making finding a match easy. If
# there is no match we output the ${inc_dir}.
loopit := \
for inc_dir in $(llvm.include_dirs); do \
if ! echo " $(search_paths) " | grep -q " $${inc_dir} "; then \
echo "-isystem $(CROSS_SYSROOT)$${inc_dir}"; \
fi \
done

llvm.include = $(shell $(loopit))
#$(warning llvm.include=$(llvm.include))

llvm.libs := $(shell $(LLVM_CONFIG) --libs $(LLVM_LINK_STATIC)) -lz -lncurses

ifeq ($(OSTYPE), bsd)
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