mirror of
https://github.com/cuberite/libdeflate.git
synced 2025-08-03 17:56:17 -04:00
c509497a54
Remove the need to use a temporary file, fix all the shellcheck warnings, and add 'set -eu'.
64 lines
1.5 KiB
Bash
Executable File
64 lines
1.5 KiB
Bash
Executable File
#!/bin/sh
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set -eu
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# Use CC if specified in environment, else default to "cc".
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: "${CC:=cc}"
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# Use CFLAGS if specified in environment.
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: "${CFLAGS:=}"
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echo "/* THIS FILE WAS AUTOMATICALLY GENERATED. DO NOT EDIT. */"
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echo "#ifndef CONFIG_H"
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echo "#define CONFIG_H"
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program_compiles() {
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echo "$1" | $CC $CFLAGS -Wno-error -x c - -o /dev/null > /dev/null 2>&1
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}
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check_function() {
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funcname=$1
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macro="HAVE_$(echo "$funcname" | tr '[:lower:]' '[:upper:]')"
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echo
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echo "/* Is the $funcname() function available? */"
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if program_compiles "int main() { $funcname(); }"; then
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echo "#define $macro 1"
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else
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echo "/* $macro is not set */"
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fi
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}
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have_stat_field() {
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program_compiles "#include <sys/types.h>
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#include <sys/stat.h>
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int main() { struct stat st; st.$1; }"
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}
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check_stat_nanosecond_precision() {
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echo
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echo "/* Does stat() provide nanosecond-precision timestamps? */"
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if have_stat_field st_atim; then
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echo "#define HAVE_STAT_NANOSECOND_PRECISION 1"
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elif have_stat_field st_atimespec; then
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# Nonstandard field names used by OS X and older BSDs
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echo "#define HAVE_STAT_NANOSECOND_PRECISION 1"
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echo "#define st_atim st_atimespec"
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echo "#define st_mtim st_mtimespec"
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echo "#define st_ctim st_ctimespec"
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else
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echo "/* HAVE_STAT_NANOSECOND_PRECISION is not set */"
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fi
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}
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check_function clock_gettime
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check_function futimens
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check_function futimes
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check_function posix_fadvise
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check_function posix_madvise
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check_stat_nanosecond_precision
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echo
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echo "#endif /* CONFIG_H */"
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