2 # ac_fn_c_check_header_compile LINENO HEADER VAR INCLUDES
3 # -------------------------------------------------------
4 # Tests whether HEADER exists and can be compiled using the include files in
5 # INCLUDES, setting the cache variable VAR accordingly.
6 ac_fn_c_check_header_compile ()
8 as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
9 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
10 $as_echo_n "checking for $2... " >&6; }
11 if eval \${$3+:} false; then :
12 $as_echo_n "(cached) " >&6
14 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
19 if ac_fn_c_try_compile "$LINENO"; then :
24 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
27 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
28 $as_echo "$ac_res" >&6; }
29 eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
31 } # ac_fn_c_check_header_compile
32 # This file is generated from configure.ac by Autoconf. DO NOT EDIT!
33 # Local configure fragment for sysdeps/x86_64.
36 ac_fn_c_check_header_compile "$LINENO" "cpuid.h" "ac_cv_header_cpuid_h" "/* No default includes. */
38 if test "x$ac_cv_header_cpuid_h" = xyes; then :
41 as_fn_error $? "gcc must provide the <cpuid.h> header" "$LINENO" 5
46 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for SSE4 support" >&5
47 $as_echo_n "checking for SSE4 support... " >&6; }
48 if ${libc_cv_cc_sse4+:} false; then :
49 $as_echo_n "(cached) " >&6
51 if { ac_try='${CC-cc} -msse4 -xc /dev/null -S -o /dev/null'
52 { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
55 $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
56 test $ac_status = 0; }; }; then :
63 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_cc_sse4" >&5
64 $as_echo "$libc_cv_cc_sse4" >&6; }
65 if test $libc_cv_cc_sse4 = yes; then
66 $as_echo "#define HAVE_SSE4_SUPPORT 1" >>confdefs.h
69 config_vars="$config_vars
70 config-cflags-sse4 = $libc_cv_cc_sse4"
72 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for AVX support" >&5
73 $as_echo_n "checking for AVX support... " >&6; }
74 if ${libc_cv_cc_avx+:} false; then :
75 $as_echo_n "(cached) " >&6
77 if { ac_try='${CC-cc} -mavx -xc /dev/null -S -o /dev/null'
78 { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
81 $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
82 test $ac_status = 0; }; }; then :
89 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_cc_avx" >&5
90 $as_echo "$libc_cv_cc_avx" >&6; }
91 if test $libc_cv_cc_avx = yes; then
92 $as_echo "#define HAVE_AVX_SUPPORT 1" >>confdefs.h
95 config_vars="$config_vars
96 config-cflags-avx = $libc_cv_cc_avx"
98 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for AVX encoding of SSE instructions" >&5
99 $as_echo_n "checking for AVX encoding of SSE instructions... " >&6; }
100 if ${libc_cv_cc_sse2avx+:} false; then :
101 $as_echo_n "(cached) " >&6
103 if { ac_try='${CC-cc} -msse2avx -xc /dev/null -S -o /dev/null'
104 { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
107 $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
108 test $ac_status = 0; }; }; then :
109 libc_cv_cc_sse2avx=yes
111 libc_cv_cc_sse2avx=no
115 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_cc_sse2avx" >&5
116 $as_echo "$libc_cv_cc_sse2avx" >&6; }
117 if test $libc_cv_cc_sse2avx = yes; then
118 $as_echo "#define HAVE_SSE2AVX_SUPPORT 1" >>confdefs.h
121 config_vars="$config_vars
122 config-cflags-sse2avx = $libc_cv_cc_sse2avx"
124 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for FMA4 support" >&5
125 $as_echo_n "checking for FMA4 support... " >&6; }
126 if ${libc_cv_cc_fma4+:} false; then :
127 $as_echo_n "(cached) " >&6
129 if { ac_try='${CC-cc} -mfma4 -xc /dev/null -S -o /dev/null'
130 { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
133 $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
134 test $ac_status = 0; }; }; then :
141 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_cc_fma4" >&5
142 $as_echo "$libc_cv_cc_fma4" >&6; }
143 if test $libc_cv_cc_fma4 = yes; then
144 $as_echo "#define HAVE_FMA4_SUPPORT 1" >>confdefs.h
147 config_vars="$config_vars
148 have-mfma4 = $libc_cv_cc_fma4"
150 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -mno-vzeroupper support" >&5
151 $as_echo_n "checking for -mno-vzeroupper support... " >&6; }
152 if ${libc_cv_cc_novzeroupper+:} false; then :
153 $as_echo_n "(cached) " >&6
155 if { ac_try='${CC-cc} -mno-vzeroupper -xc /dev/null -S -o /dev/null'
156 { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
159 $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
160 test $ac_status = 0; }; }; then :
161 libc_cv_cc_novzeroupper=yes
163 libc_cv_cc_novzeroupper=no
167 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_cc_novzeroupper" >&5
168 $as_echo "$libc_cv_cc_novzeroupper" >&6; }
169 config_vars="$config_vars
170 config-cflags-novzeroupper = $libc_cv_cc_novzeroupper"
172 $as_echo "#define PI_STATIC_AND_HIDDEN 1" >>confdefs.h
174 # work around problem with autoconf and empty lines at the end of files