c_check: test for omp_pause_resource_all()

Assume that the ctest3.c program successfully compiling and linking
means that the function is available.

c_check

@@ -412,6 +412,14 @@ fi
 
 [ "$USE_OPENMP" != 1 ] && openmp=''
 
+have_omp_pause_resource_all=0
+if [ "$USE_OPENMP" = 1 ]; then
+    if $compiler_name $flags $openmp -o ctest3 ctest3.c; then
+        have_omp_pause_resource_all=1
+    fi
+    rm -f ctest3.o ctest3 ctest3.exe
+fi
+
 linker_L=""
 linker_l=""
 linker_a=""
@@ -501,6 +509,7 @@ done
     [ "$oldgcc" -eq 1 ] && printf "OLDGCC=1\n"
     [ "$no_lsx" -eq 1 ] && printf "NO_LSX=1\n"
     [ "$no_lasx" -eq 1 ] && printf "NO_LASX=1\n"
+    [ "$have_omp_pause_resource_all" -eq 1 ] && printf "HAVE_OMP_PAUSE_RESOURCE_ALL=1\n"
 } >> "$makefile"
 
 os=`echo "$os" | tr '[[:lower:]]' '[[:upper:]]'/ `
@@ -518,6 +527,7 @@ compiler=`echo "$compiler" | tr '[[:lower:]]' '[[:upper:]]' `
     [ "$c11_atomics" -eq 1 ] && printf "#define HAVE_C11\t1\n"
     [ "$no_lsx" -eq 1 ] && printf "#define NO_LSX\t1\n"
     [ "$no_lasx" -eq 1 ] && printf "#define NO_LASX\t1\n"
+    [ "$have_omp_pause_resource_all" -eq 1 ] && printf "#define HAVE_OMP_PAUSE_RESOURCE_ALL\t1\n"
 } >> "$config"
 
 

c_check.pl

@@ -394,6 +394,14 @@ $cross = 0 if (($os eq "Android") && ($hostos eq "Linux") && ($ENV{TERMUX_APP_PI
 
 $openmp = "" if $ENV{USE_OPENMP} != 1;
 
+$have_omp_pause_resource_all=0;
+if ($ENV{USE_OPENMP} == 1) {
+    if (system("$compiler_name $flags $openmp -o ctest3 ctest3.c") == 0) {
+        $have_omp_pause_resource_all=1;
+    }
+    unlink "ctest3.o", "ctest3", "ctest3.exe";
+}
+
 $linker_L = "";
 $linker_l = "";
 $linker_a = "";
@@ -472,6 +480,7 @@ print MAKEFILE "NO_AVX2=1\n" if $no_avx2 eq 1;
 print MAKEFILE "OLDGCC=1\n" if $oldgcc eq 1;
 print MAKEFILE "NO_LSX=1\n" if $no_lsx eq 1;
 print MAKEFILE "NO_LASX=1\n" if $no_lasx eq 1;
+print MAKEFILE "HAVE_OMP_PAUSE_RESOURCE_ALL=1\n" if $have_omp_pause_resource_all eq 1;
 
 $os           =~ tr/[a-z]/[A-Z]/;
 $architecture =~ tr/[a-z]/[A-Z]/;
@@ -487,6 +496,7 @@ print CONFFILE "#define HAVE_MSA\t1\n"  if $have_msa eq 1;
 print CONFFILE "#define HAVE_C11\t1\n" if $c11_atomics eq 1;
 print CONFFILE "#define NO_LSX\t1\n" if $no_lsx eq 1;
 print CONFFILE "#define NO_LASX\t1\n" if $no_lasx eq 1;
+print CONFFILE "#define HAVE_OMP_PAUSE_RESOURCE_ALL\t1\n" if $have_omp_pause_resource_all eq 1;
 
 
 if ($os eq "LINUX") {

ctest3.c

@@ -0,0 +1,2 @@
+#include <omp.h>
+int main(void) { return omp_pause_resource_all(omp_pause_hard); }