diff options
Diffstat (limited to 'libgfortran/configure')
| -rwxr-xr-x | libgfortran/configure | 90 |
1 files changed, 48 insertions, 42 deletions
diff --git a/libgfortran/configure b/libgfortran/configure index 2fadbb59e46..81cdcaa6a4f 100755 --- a/libgfortran/configure +++ b/libgfortran/configure @@ -4433,29 +4433,35 @@ else fi ;; *) - # Make teststring a little bigger before we do anything with it. - # a 1K string should be a reasonable start. - for i in 1 2 3 4 5 6 7 8 ; do - teststring=$teststring$teststring - done - SHELL=${SHELL-${CONFIG_SHELL-/bin/sh}} - # If test is not a shell built-in, we'll probably end up computing a - # maximum length that is only half of the actual maximum length, but - # we can't tell. - while { test "X"`$SHELL $0 --fallback-echo "X$teststring$teststring" 2>/dev/null` \ - = "XX$teststring$teststring"; } >/dev/null 2>&1 && - test $i != 17 # 1/2 MB should be enough - do - i=`expr $i + 1` - teststring=$teststring$teststring - done - # Only check the string length outside the loop. - lt_cv_sys_max_cmd_len=`expr "X$teststring" : ".*" 2>&1` - teststring= - # Add a significant safety factor because C++ compilers can tack on massive - # amounts of additional arguments before passing them to the linker. - # It appears as though 1/2 is a usable value. - lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 2` + lt_cv_sys_max_cmd_len=`getconf ARG_MAX 2> /dev/null` + if test -n $lt_cv_sys_max_cmd_len; then + lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4` + lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3` + else + # Make teststring a little bigger before we do anything with it. + # a 1K string should be a reasonable start. + for i in 1 2 3 4 5 6 7 8 ; do + teststring=$teststring$teststring + done + SHELL=${SHELL-${CONFIG_SHELL-/bin/sh}} + # If test is not a shell built-in, we'll probably end up computing a + # maximum length that is only half of the actual maximum length, but + # we can't tell. + while { test "X"`$SHELL $0 --fallback-echo "X$teststring$teststring" 2>/dev/null` \ + = "XX$teststring$teststring"; } >/dev/null 2>&1 && + test $i != 17 # 1/2 MB should be enough + do + i=`expr $i + 1` + teststring=$teststring$teststring + done + # Only check the string length outside the loop. + lt_cv_sys_max_cmd_len=`expr "X$teststring" : ".*" 2>&1` + teststring= + # Add a significant safety factor because C++ compilers can tack on + # massive amounts of additional arguments before passing them to the + # linker. It appears as though 1/2 is a usable value. + lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 2` + fi ;; esac @@ -5375,7 +5381,7 @@ ia64-*-hpux*) ;; *-*-irix6*) # Find out which ABI we are using. - echo '#line 5378 "configure"' > conftest.$ac_ext + echo '#line 5384 "configure"' > conftest.$ac_ext if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 (eval $ac_compile) 2>&5 ac_status=$? @@ -6480,11 +6486,11 @@ else -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \ -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \ -e 's:$: $lt_compiler_flag:'` - (eval echo "\"\$as_me:6483: $lt_compile\"" >&5) + (eval echo "\"\$as_me:6489: $lt_compile\"" >&5) (eval "$lt_compile" 2>conftest.err) ac_status=$? cat conftest.err >&5 - echo "$as_me:6487: \$? = $ac_status" >&5 + echo "$as_me:6493: \$? = $ac_status" >&5 if (exit $ac_status) && test -s "$ac_outfile"; then # The compiler can only warn and ignore the option if not recognized # So say no if there are warnings other than the usual output. @@ -6802,11 +6808,11 @@ else -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \ -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \ -e 's:$: $lt_compiler_flag:'` - (eval echo "\"\$as_me:6805: $lt_compile\"" >&5) + (eval echo "\"\$as_me:6811: $lt_compile\"" >&5) (eval "$lt_compile" 2>conftest.err) ac_status=$? cat conftest.err >&5 - echo "$as_me:6809: \$? = $ac_status" >&5 + echo "$as_me:6815: \$? = $ac_status" >&5 if (exit $ac_status) && test -s "$ac_outfile"; then # The compiler can only warn and ignore the option if not recognized # So say no if there are warnings other than the usual output. @@ -6907,11 +6913,11 @@ else -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \ -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \ -e 's:$: $lt_compiler_flag:'` - (eval echo "\"\$as_me:6910: $lt_compile\"" >&5) + (eval echo "\"\$as_me:6916: $lt_compile\"" >&5) (eval "$lt_compile" 2>out/conftest.err) ac_status=$? cat out/conftest.err >&5 - echo "$as_me:6914: \$? = $ac_status" >&5 + echo "$as_me:6920: \$? = $ac_status" >&5 if (exit $ac_status) && test -s out/conftest2.$ac_objext then # The compiler can only warn and ignore the option if not recognized @@ -6962,11 +6968,11 @@ else -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \ -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \ -e 's:$: $lt_compiler_flag:'` - (eval echo "\"\$as_me:6965: $lt_compile\"" >&5) + (eval echo "\"\$as_me:6971: $lt_compile\"" >&5) (eval "$lt_compile" 2>out/conftest.err) ac_status=$? cat out/conftest.err >&5 - echo "$as_me:6969: \$? = $ac_status" >&5 + echo "$as_me:6975: \$? = $ac_status" >&5 if (exit $ac_status) && test -s out/conftest2.$ac_objext then # The compiler can only warn and ignore the option if not recognized @@ -9814,7 +9820,7 @@ else lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2 lt_status=$lt_dlunknown cat > conftest.$ac_ext <<_LT_EOF -#line 9817 "configure" +#line 9823 "configure" #include "confdefs.h" #if HAVE_DLFCN_H @@ -9914,7 +9920,7 @@ else lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2 lt_status=$lt_dlunknown cat > conftest.$ac_ext <<_LT_EOF -#line 9917 "configure" +#line 9923 "configure" #include "confdefs.h" #if HAVE_DLFCN_H @@ -10244,7 +10250,7 @@ fi # Provide some information about the compiler. -echo "$as_me:10247:" \ +echo "$as_me:10253:" \ "checking for Fortran compiler version" >&5 ac_compiler=`set X $ac_compile; echo $2` { (eval echo "$as_me:$LINENO: \"$ac_compiler --version </dev/null >&5\"") >&5 @@ -10480,7 +10486,7 @@ fi # Provide some information about the compiler. -echo "$as_me:10483:" \ +echo "$as_me:10489:" \ "checking for Fortran compiler version" >&5 ac_compiler=`set X $ac_compile; echo $2` { (eval echo "$as_me:$LINENO: \"$ac_compiler --version </dev/null >&5\"") >&5 @@ -11196,11 +11202,11 @@ else -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \ -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \ -e 's:$: $lt_compiler_flag:'` - (eval echo "\"\$as_me:11199: $lt_compile\"" >&5) + (eval echo "\"\$as_me:11205: $lt_compile\"" >&5) (eval "$lt_compile" 2>conftest.err) ac_status=$? cat conftest.err >&5 - echo "$as_me:11203: \$? = $ac_status" >&5 + echo "$as_me:11209: \$? = $ac_status" >&5 if (exit $ac_status) && test -s "$ac_outfile"; then # The compiler can only warn and ignore the option if not recognized # So say no if there are warnings other than the usual output. @@ -11295,11 +11301,11 @@ else -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \ -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \ -e 's:$: $lt_compiler_flag:'` - (eval echo "\"\$as_me:11298: $lt_compile\"" >&5) + (eval echo "\"\$as_me:11304: $lt_compile\"" >&5) (eval "$lt_compile" 2>out/conftest.err) ac_status=$? cat out/conftest.err >&5 - echo "$as_me:11302: \$? = $ac_status" >&5 + echo "$as_me:11308: \$? = $ac_status" >&5 if (exit $ac_status) && test -s out/conftest2.$ac_objext then # The compiler can only warn and ignore the option if not recognized @@ -11347,11 +11353,11 @@ else -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \ -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \ -e 's:$: $lt_compiler_flag:'` - (eval echo "\"\$as_me:11350: $lt_compile\"" >&5) + (eval echo "\"\$as_me:11356: $lt_compile\"" >&5) (eval "$lt_compile" 2>out/conftest.err) ac_status=$? cat out/conftest.err >&5 - echo "$as_me:11354: \$? = $ac_status" >&5 + echo "$as_me:11360: \$? = $ac_status" >&5 if (exit $ac_status) && test -s out/conftest2.$ac_objext then # The compiler can only warn and ignore the option if not recognized |
