40 lines
1.4 KiB
Plaintext
40 lines
1.4 KiB
Plaintext
AC_PREREQ([2.69])
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AC_INIT([fastwc], [0.1.0], [], [fastwc])
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AC_CONFIG_SRCDIR([src/main.c])
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# Build flavor: --enable-glibc links dynamically against the system libc
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# (respecting CC, whatever it is). The default is a fully static musl
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# binary, preferring musl-gcc even when CC is set in the environment,
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# since removing ld.so from startup is exactly what the tiny-file
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# benchmark races hinge on.
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AC_ARG_ENABLE([glibc],
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[AS_HELP_STRING([--enable-glibc],
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[link dynamically against the system libc (respects CC) instead of the default static musl])],
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[enable_glibc=$enableval], [enable_glibc=no])
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STATIC_LDFLAGS=
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if test "x$enable_glibc" = xno; then
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# Static musl is the default toolchain. Fall back to the system
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# compiler (dynamic link) only when no musl compiler is installed.
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AC_PATH_PROGS([MUSL_CC], [musl-gcc x86_64-linux-musl-gcc])
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if test -n "$MUSL_CC"; then
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CC="$MUSL_CC"
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STATIC_LDFLAGS="-static"
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fi
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fi
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AC_PROG_CC
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AC_CHECK_TOOL([STRIP], [strip], [:])
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AC_USE_SYSTEM_EXTENSIONS
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AM_INIT_AUTOMAKE([foreign subdir-objects])
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AS_IF([test "x$enable_glibc" = xyes],
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[AC_MSG_NOTICE([fastwc: glibc build requested, using $CC])],
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[AS_IF([test -n "$MUSL_CC"],
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[AC_MSG_NOTICE([fastwc: building against static musl ($MUSL_CC)])],
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[AC_MSG_WARN([fastwc: musl-gcc not found; falling back to $CC (dynamic link). Install a musl toolchain or configure --enable-glibc.])])])
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AC_SUBST([STATIC_LDFLAGS])
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AC_CONFIG_FILES([Makefile])
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AC_OUTPUT
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