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m4/ax_c_pragmas.m4: introduce HAVE_PRAGMA_GCC_DIAGNOSTIC_IGNORED_ADDRESS and HAVE_PRAGMA_GCC_DIAGNOSTIC_IGNORED_PEDANTIC #2477

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merged 2 commits into from
Jun 24, 2024
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m4/ax_c_pragmas.m4: introduce HAVE_PRAGMA_GCC_DIAGNOSTIC_IGNORED_ADDRESS and HAVE_PRAGMA_GCC_DIAGNOSTIC_IGNORED_PEDANTIC #2477

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m4/ax_c_pragmas.m4: add HAVE_PRAGMA_GCC_DIAGNOSTIC_IGNORED_PEDANTIC
jimklimov Dec 4, 2021
31bcd00
m4/ax_c_pragmas.m4: introduce HAVE_PRAGMA_GCC_DIAGNOSTIC_IGNORED_ADDRESS
jimklimov Feb 29, 2024
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54 changes: 54 additions & 0 deletions m4/ax_c_pragmas.m4
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Original file line number Diff line number Diff line change
Expand Up @@ -146,6 +146,33 @@ dnl ### [CFLAGS="${CFLAGS_SAVED} -Werror=pragmas -Werror=unknown-warning"
]) dnl Special pragma support testing for clang

dnl Test common pragmas for GCC (and compatible) compilers
AC_CACHE_CHECK([for pragma GCC diagnostic ignored "-Wpedantic"],
[ax_cv__pragma__gcc__diags_ignored_pedantic],
[AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM([[void func(void) {
#pragma GCC diagnostic ignored "-Wpedantic"
}
]], [])],
[ax_cv__pragma__gcc__diags_ignored_pedantic=yes],
[ax_cv__pragma__gcc__diags_ignored_pedantic=no]
)]
)
AS_IF([test "$ax_cv__pragma__gcc__diags_ignored_pedantic" = "yes"],[
AC_DEFINE([HAVE_PRAGMA_GCC_DIAGNOSTIC_IGNORED_PEDANTIC], 1, [define if your compiler has #pragma GCC diagnostic ignored "-Wpedantic"])
])

AC_CACHE_CHECK([for pragma GCC diagnostic ignored "-Wpedantic" (outside functions)],
[ax_cv__pragma__gcc__diags_ignored_pedantic_besidefunc],
[AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM([[#pragma GCC diagnostic ignored "-Wpedantic"]], [])],
[ax_cv__pragma__gcc__diags_ignored_pedantic_besidefunc=yes],
[ax_cv__pragma__gcc__diags_ignored_pedantic_besidefunc=no]
)]
)
AS_IF([test "$ax_cv__pragma__gcc__diags_ignored_pedantic_besidefunc" = "yes"],[
AC_DEFINE([HAVE_PRAGMA_GCC_DIAGNOSTIC_IGNORED_PEDANTIC_BESIDEFUNC], 1, [define if your compiler has #pragma GCC diagnostic ignored "-Wpedantic" (outside functions)])
])

AC_CACHE_CHECK([for pragma GCC diagnostic ignored "-Wunused-function"],
[ax_cv__pragma__gcc__diags_ignored_unused_function],
[AC_COMPILE_IFELSE(
Expand Down Expand Up @@ -662,6 +689,33 @@ dnl ### [CFLAGS="${CFLAGS_SAVED} -Werror=pragmas -Werror=unknown-warning"
AC_DEFINE([HAVE_PRAGMA_GCC_DIAGNOSTIC_IGNORED_EXTRA_SEMI_STMT_BESIDEFUNC], 1, [define if your compiler has #pragma GCC diagnostic ignored "-Wextra-semi-stmt" (outside functions)])
])

AC_CACHE_CHECK([for pragma GCC diagnostic ignored "-Waddress"],
[ax_cv__pragma__gcc__diags_ignored_address],
[AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM([[void func(void) {
#pragma GCC diagnostic ignored "-Waddress"
}
]], [])],
[ax_cv__pragma__gcc__diags_ignored_address=yes],
[ax_cv__pragma__gcc__diags_ignored_address=no]
)]
)
AS_IF([test "$ax_cv__pragma__gcc__diags_ignored_address" = "yes"],[
AC_DEFINE([HAVE_PRAGMA_GCC_DIAGNOSTIC_IGNORED_ADDRESS], 1, [define if your compiler has #pragma GCC diagnostic ignored "-Waddress"])
])

AC_CACHE_CHECK([for pragma GCC diagnostic ignored "-Waddress" (outside functions)],
[ax_cv__pragma__gcc__diags_ignored_address_besidefunc],
[AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM([[#pragma GCC diagnostic ignored "-Waddress"]], [])],
[ax_cv__pragma__gcc__diags_ignored_address_besidefunc=yes],
[ax_cv__pragma__gcc__diags_ignored_address_besidefunc=no]
)]
)
AS_IF([test "$ax_cv__pragma__gcc__diags_ignored_address_besidefunc" = "yes"],[
AC_DEFINE([HAVE_PRAGMA_GCC_DIAGNOSTIC_IGNORED_ADDRESS_BESIDEFUNC], 1, [define if your compiler has #pragma GCC diagnostic ignored "-Waddress" (outside functions)])
])

AC_CACHE_CHECK([for pragma GCC diagnostic ignored "-Wcast-align"],
[ax_cv__pragma__gcc__diags_ignored_cast_align],
[AC_COMPILE_IFELSE(
Expand Down
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