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; ${as_lineno_stack:+:} unset as_lineno
31 } # ac_fn_c_check_header_compile
32 # This file is generated from configure.in by Autoconf. DO NOT EDIT!
33 # Local configure fragment for sysdeps/x86_64.
36 ac_fn_c_check_header_compile "$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
70 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for AVX support" >&5
71 $as_echo_n "checking for AVX support... " >&6; }
72 if ${libc_cv_cc_avx+:} false; then :
73 $as_echo_n "(cached) " >&6
75 if { ac_try='${CC-cc} -mavx -xc /dev/null -S -o /dev/null'
76 { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
79 $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
80 test $ac_status = 0; }; }; then :
87 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_cc_avx" >&5
88 $as_echo "$libc_cv_cc_avx" >&6; }
89 if test $libc_cv_cc_avx = yes; then
90 $as_echo "#define HAVE_AVX_SUPPORT 1" >>confdefs.h
94 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for AVX encoding of SSE instructions" >&5
95 $as_echo_n "checking for AVX encoding of SSE instructions... " >&6; }
96 if ${libc_cv_cc_sse2avx+:} false; then :
97 $as_echo_n "(cached) " >&6
99 if { ac_try='${CC-cc} -msse2avx -xc /dev/null -S -o /dev/null'
100 { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
103 $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
104 test $ac_status = 0; }; }; then :
105 libc_cv_cc_sse2avx=yes
107 libc_cv_cc_sse2avx=no
111 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_cc_sse2avx" >&5
112 $as_echo "$libc_cv_cc_sse2avx" >&6; }
113 if test $libc_cv_cc_sse2avx = yes; then
114 $as_echo "#define HAVE_SSE2AVX_SUPPORT 1" >>confdefs.h
118 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for FMA4 support" >&5
119 $as_echo_n "checking for FMA4 support... " >&6; }
120 if ${libc_cv_cc_fma4+:} false; then :
121 $as_echo_n "(cached) " >&6
123 if { ac_try='${CC-cc} -mfma4 -xc /dev/null -S -o /dev/null'
124 { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
127 $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
128 test $ac_status = 0; }; }; then :
135 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_cc_fma4" >&5
136 $as_echo "$libc_cv_cc_fma4" >&6; }
137 if test $libc_cv_cc_fma4 = yes; then
138 $as_echo "#define HAVE_FMA4_SUPPORT 1" >>confdefs.h
142 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -mno-vzeroupper support" >&5
143 $as_echo_n "checking for -mno-vzeroupper support... " >&6; }
144 if ${libc_cv_cc_novzeroupper+:} false; then :
145 $as_echo_n "(cached) " >&6
147 if { ac_try='${CC-cc} -mno-vzeroupper -xc /dev/null -S -o /dev/null'
148 { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
151 $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
152 test $ac_status = 0; }; }; then :
153 libc_cv_cc_novzeroupper=yes
155 libc_cv_cc_novzeroupper=no
159 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_cc_novzeroupper" >&5
160 $as_echo "$libc_cv_cc_novzeroupper" >&6; }
162 $as_echo "#define PI_STATIC_AND_HIDDEN 1" >>confdefs.h
164 # work around problem with autoconf and empty lines at the end of files