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From: Michael Frysinger <vapier@sourceware.org> To: glibc-cvs@sourceware.org Subject: [glibc] configure.ac: fix bashisms in configure.ac Date: Wed, 23 Mar 2022 01:53:38 +0000 (GMT) [thread overview] Message-ID: <20220323015338.00D283858401@sourceware.org> (raw) https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=cb7b1c9014945cb79cdd0b375e65724d6c574a8c commit cb7b1c9014945cb79cdd0b375e65724d6c574a8c Author: Sam James <sam@gentoo.org> Date: Tue Mar 22 17:33:09 2022 +0000 configure.ac: fix bashisms in configure.ac configure scripts need to be runnable with a POSIX-compliant /bin/sh. On many (but not all!) systems, /bin/sh is provided by Bash, so errors like this aren't spotted. Notably Debian defaults to /bin/sh provided by dash which doesn't tolerate such bashisms as '=='. This retains compatibility with bash. Fixes configure warnings/errors like: ``` checking if compiler warns about alias for function with incompatible types... yes /var/tmp/portage/sys-libs/glibc-2.34-r10/work/glibc-2.34/configure: 4209: test: xyes: unexpected operator ``` Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org> Signed-off-by: Sam James <sam@gentoo.org> Diff: --- configure | 2 +- configure.ac | 2 +- sysdeps/powerpc/powerpc64/le/configure | 2 +- sysdeps/powerpc/powerpc64/le/configure.ac | 2 +- sysdeps/powerpc/powerpc64/le/fpu/multiarch/configure | 2 +- sysdeps/powerpc/powerpc64/le/fpu/multiarch/configure.ac | 2 +- 6 files changed, 6 insertions(+), 6 deletions(-) diff --git a/configure b/configure index 8e5bee775a..2a3cb49b0b 100755 --- a/configure +++ b/configure @@ -4232,7 +4232,7 @@ if test x"$libc_cv_gcc_indirect_function" != xyes; then # GCC 8+ emits a warning for alias with incompatible types and it might # fail to build ifunc resolvers aliases to either weak or internal # symbols. Disables multiarch build in this case. - if test x"$libc_cv_gcc_incompatible_alias" == xyes; then + if test x"$libc_cv_gcc_incompatible_alias" = xyes; then { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: gcc emits a warning for alias between functions of incompatible types" >&5 $as_echo "$as_me: WARNING: gcc emits a warning for alias between functions of incompatible types" >&2;} if test x"$multi_arch" = xyes; then diff --git a/configure.ac b/configure.ac index 87f67d25ec..fa7d3c025b 100644 --- a/configure.ac +++ b/configure.ac @@ -767,7 +767,7 @@ if test x"$libc_cv_gcc_indirect_function" != xyes; then # GCC 8+ emits a warning for alias with incompatible types and it might # fail to build ifunc resolvers aliases to either weak or internal # symbols. Disables multiarch build in this case. - if test x"$libc_cv_gcc_incompatible_alias" == xyes; then + if test x"$libc_cv_gcc_incompatible_alias" = xyes; then AC_MSG_WARN([gcc emits a warning for alias between functions of incompatible types]) if test x"$multi_arch" = xyes; then AC_MSG_ERROR([--enable-multi-arch support requires a gcc with gnu-indirect-function support]) diff --git a/sysdeps/powerpc/powerpc64/le/configure b/sysdeps/powerpc/powerpc64/le/configure index 35950a6ddd..395f9f7309 100644 --- a/sysdeps/powerpc/powerpc64/le/configure +++ b/sysdeps/powerpc/powerpc64/le/configure @@ -113,7 +113,7 @@ CFLAGS="$save_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_compiler_powerpc64le_ldbl128_mabi" >&5 $as_echo "$libc_cv_compiler_powerpc64le_ldbl128_mabi" >&6; } -if test "$libc_cv_compiler_powerpc64le_ldbl128_mabi" == "no"; then : +if test "$libc_cv_compiler_powerpc64le_ldbl128_mabi" = "no"; then : critic_missing="$critic_missing The compiler must support -mabi=ieeelongdouble and -mlong-double-128 simultaneously." fi diff --git a/sysdeps/powerpc/powerpc64/le/configure.ac b/sysdeps/powerpc/powerpc64/le/configure.ac index 9f0423ede2..48d7089b63 100644 --- a/sysdeps/powerpc/powerpc64/le/configure.ac +++ b/sysdeps/powerpc/powerpc64/le/configure.ac @@ -63,7 +63,7 @@ long double x; [libc_cv_compiler_powerpc64le_ldbl128_mabi=yes], [libc_cv_compiler_powerpc64le_ldbl128_mabi=no]) CFLAGS="$save_CFLAGS"]) -AS_IF([test "$libc_cv_compiler_powerpc64le_ldbl128_mabi" == "no"], +AS_IF([test "$libc_cv_compiler_powerpc64le_ldbl128_mabi" = "no"], [critic_missing="$critic_missing The compiler must support -mabi=ieeelongdouble and -mlong-double-128 simultaneously."]) dnl objcopy (binutils) 2.26 or newer required to support the --update-section diff --git a/sysdeps/powerpc/powerpc64/le/fpu/multiarch/configure b/sysdeps/powerpc/powerpc64/le/fpu/multiarch/configure index 4ca1d15833..b95a720549 100644 --- a/sysdeps/powerpc/powerpc64/le/fpu/multiarch/configure +++ b/sysdeps/powerpc/powerpc64/le/fpu/multiarch/configure @@ -25,7 +25,7 @@ fi $as_echo "$libc_cv_mcpu_power10" >&6; } config_vars="$config_vars mcpu-power10 = $libc_cv_mcpu_power10" -if test "$libc_cv_mcpu_power10" == "yes"; then : +if test "$libc_cv_mcpu_power10" = "yes"; then : $as_echo "#define USE_PPC64_MCPU_POWER10 1" >>confdefs.h diff --git a/sysdeps/powerpc/powerpc64/le/fpu/multiarch/configure.ac b/sysdeps/powerpc/powerpc64/le/fpu/multiarch/configure.ac index ceb578cc59..257ca6c110 100644 --- a/sysdeps/powerpc/powerpc64/le/fpu/multiarch/configure.ac +++ b/sysdeps/powerpc/powerpc64/le/fpu/multiarch/configure.ac @@ -9,6 +9,6 @@ AC_COMPILE_IFELSE([AC_LANG_SOURCE([[ [libc_cv_mcpu_power10=yes], [libc_cv_mcpu_power10=no])]) LIBC_CONFIG_VAR([mcpu-power10], [$libc_cv_mcpu_power10]) -AS_IF([[test "$libc_cv_mcpu_power10" == "yes"]],[ +AS_IF([[test "$libc_cv_mcpu_power10" = "yes"]],[ AC_DEFINE(USE_PPC64_MCPU_POWER10)]) CFLAGS="$OLD_CFLAGS"
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