📄 configure
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ac_cv_prog_CC="$CC" # Let the user override the test.elseas_save_IFS=$IFS; IFS=$PATH_SEPARATORfor as_dir in $PATHdo IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_CC="${ac_tool_prefix}gcc" echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fidonedonefifiCC=$ac_cv_prog_CCif test -n "$CC"; then echo "$as_me:$LINENO: result: $CC" >&5echo "${ECHO_T}$CC" >&6else echo "$as_me:$LINENO: result: no" >&5echo "${ECHO_T}no" >&6fifiif test -z "$ac_cv_prog_CC"; then ac_ct_CC=$CC # Extract the first word of "gcc", so it can be a program name with args.set dummy gcc; ac_word=$2echo "$as_me:$LINENO: checking for $ac_word" >&5echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6if test "${ac_cv_prog_ac_ct_CC+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6else if test -n "$ac_ct_CC"; then ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.elseas_save_IFS=$IFS; IFS=$PATH_SEPARATORfor as_dir in $PATHdo IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_CC="gcc" echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fidonedonefifiac_ct_CC=$ac_cv_prog_ac_ct_CCif test -n "$ac_ct_CC"; then echo "$as_me:$LINENO: result: $ac_ct_CC" >&5echo "${ECHO_T}$ac_ct_CC" >&6else echo "$as_me:$LINENO: result: no" >&5echo "${ECHO_T}no" >&6fi CC=$ac_ct_CCelse CC="$ac_cv_prog_CC"fiif test -z "$CC"; then if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}cc", so it can be a program name with args.set dummy ${ac_tool_prefix}cc; ac_word=$2echo "$as_me:$LINENO: checking for $ac_word" >&5echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6if test "${ac_cv_prog_CC+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6else if test -n "$CC"; then ac_cv_prog_CC="$CC" # Let the user override the test.elseas_save_IFS=$IFS; IFS=$PATH_SEPARATORfor as_dir in $PATHdo IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_CC="${ac_tool_prefix}cc" echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fidonedonefifiCC=$ac_cv_prog_CCif test -n "$CC"; then echo "$as_me:$LINENO: result: $CC" >&5echo "${ECHO_T}$CC" >&6else echo "$as_me:$LINENO: result: no" >&5echo "${ECHO_T}no" >&6fifiif test -z "$ac_cv_prog_CC"; then ac_ct_CC=$CC # Extract the first word of "cc", so it can be a program name with args.set dummy cc; ac_word=$2echo "$as_me:$LINENO: checking for $ac_word" >&5echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6if test "${ac_cv_prog_ac_ct_CC+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6else if test -n "$ac_ct_CC"; then ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.elseas_save_IFS=$IFS; IFS=$PATH_SEPARATORfor as_dir in $PATHdo IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_CC="cc" echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fidonedonefifiac_ct_CC=$ac_cv_prog_ac_ct_CCif test -n "$ac_ct_CC"; then echo "$as_me:$LINENO: result: $ac_ct_CC" >&5echo "${ECHO_T}$ac_ct_CC" >&6else echo "$as_me:$LINENO: result: no" >&5echo "${ECHO_T}no" >&6fi CC=$ac_ct_CCelse CC="$ac_cv_prog_CC"fifiif test -z "$CC"; then # Extract the first word of "cc", so it can be a program name with args.set dummy cc; ac_word=$2echo "$as_me:$LINENO: checking for $ac_word" >&5echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6if test "${ac_cv_prog_CC+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6else if test -n "$CC"; then ac_cv_prog_CC="$CC" # Let the user override the test.else ac_prog_rejected=noas_save_IFS=$IFS; IFS=$PATH_SEPARATORfor as_dir in $PATHdo IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then if test "$as_dir/$ac_word$ac_exec_ext" = "/usr/ucb/cc"; then ac_prog_rejected=yes continue fi ac_cv_prog_CC="cc" echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fidonedoneif test $ac_prog_rejected = yes; then # We found a bogon in the path, so make sure we never use it. set dummy $ac_cv_prog_CC shift if test $# != 0; then # We chose a different compiler from the bogus one. # However, it has the same basename, so the bogon will be chosen # first if we set CC to just the basename; use the full file name. shift set dummy "$as_dir/$ac_word" ${1+"$@"} shift ac_cv_prog_CC="$@" fifififiCC=$ac_cv_prog_CCif test -n "$CC"; then echo "$as_me:$LINENO: result: $CC" >&5echo "${ECHO_T}$CC" >&6else echo "$as_me:$LINENO: result: no" >&5echo "${ECHO_T}no" >&6fifiif test -z "$CC"; then if test -n "$ac_tool_prefix"; then for ac_prog in cl do # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.set dummy $ac_tool_prefix$ac_prog; ac_word=$2echo "$as_me:$LINENO: checking for $ac_word" >&5echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6if test "${ac_cv_prog_CC+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6else if test -n "$CC"; then ac_cv_prog_CC="$CC" # Let the user override the test.elseas_save_IFS=$IFS; IFS=$PATH_SEPARATORfor as_dir in $PATHdo IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_CC="$ac_tool_prefix$ac_prog" echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fidonedonefifiCC=$ac_cv_prog_CCif test -n "$CC"; then echo "$as_me:$LINENO: result: $CC" >&5echo "${ECHO_T}$CC" >&6else echo "$as_me:$LINENO: result: no" >&5echo "${ECHO_T}no" >&6fi test -n "$CC" && break donefiif test -z "$CC"; then ac_ct_CC=$CC for ac_prog in cldo # Extract the first word of "$ac_prog", so it can be a program name with args.set dummy $ac_prog; ac_word=$2echo "$as_me:$LINENO: checking for $ac_word" >&5echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6if test "${ac_cv_prog_ac_ct_CC+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6else if test -n "$ac_ct_CC"; then ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.elseas_save_IFS=$IFS; IFS=$PATH_SEPARATORfor as_dir in $PATHdo IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_CC="$ac_prog" echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fidonedonefifiac_ct_CC=$ac_cv_prog_ac_ct_CCif test -n "$ac_ct_CC"; then echo "$as_me:$LINENO: result: $ac_ct_CC" >&5echo "${ECHO_T}$ac_ct_CC" >&6else echo "$as_me:$LINENO: result: no" >&5echo "${ECHO_T}no" >&6fi test -n "$ac_ct_CC" && breakdone CC=$ac_ct_CCfifitest -z "$CC" && { { echo "$as_me:$LINENO: error: no acceptable C compiler found in \$PATH" >&5echo "$as_me: error: no acceptable C compiler found in \$PATH" >&2;} { (exit 1); exit 1; }; }# Provide some information about the compiler.echo "$as_me:$LINENO:" \ "checking for C compiler version" >&5ac_compiler=`set X $ac_compile; echo $2`{ (eval echo "$as_me:$LINENO: \"$ac_compiler --version </dev/null >&5\"") >&5 (eval $ac_compiler --version </dev/null >&5) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }{ (eval echo "$as_me:$LINENO: \"$ac_compiler -v </dev/null >&5\"") >&5 (eval $ac_compiler -v </dev/null >&5) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }{ (eval echo "$as_me:$LINENO: \"$ac_compiler -V </dev/null >&5\"") >&5 (eval $ac_compiler -V </dev/null >&5) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }echo "$as_me:$LINENO: checking whether we are using the GNU C compiler" >&5echo $ECHO_N "checking whether we are using the GNU C compiler... $ECHO_C" >&6if test "${ac_cv_c_compiler_gnu+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6else cat >conftest.$ac_ext <<_ACEOF#line $LINENO "configure"#include "confdefs.h"#ifdef F77_DUMMY_MAIN# ifdef __cplusplus extern "C"# endif int F77_DUMMY_MAIN() { return 1; }#endifintmain (){#ifndef __GNUC__ choke me#endif ; return 0;}_ACEOFrm -f conftest.$ac_objextif { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 (eval $ac_compile) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && { ac_try='test -s conftest.$ac_objext' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; }; then ac_compiler_gnu=yeselse echo "$as_me: failed program was:" >&5cat conftest.$ac_ext >&5ac_compiler_gnu=nofirm -f conftest.$ac_objext conftest.$ac_extac_cv_c_compiler_gnu=$ac_compiler_gnufiecho "$as_me:$LINENO: result: $ac_cv_c_compiler_gnu" >&5echo "${ECHO_T}$ac_cv_c_compiler_gnu" >&6GCC=`test $ac_compiler_gnu = yes && echo yes`ac_test_CFLAGS=${CFLAGS+set}ac_save_CFLAGS=$CFLAGSCFLAGS="-g"echo "$as_me:$LINENO: checking whether $CC accepts -g" >&5echo $ECHO_N "checking whether $CC accepts -g... $ECHO_C" >&6if test "${ac_cv_prog_cc_g+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6else cat >conftest.$ac_ext <<_ACEOF#line $LINENO "configure"#include "confdefs.h"#ifdef F77_DUMMY_MAIN# ifdef __cplusplus extern "C"# endif int F77_DUMMY_MAIN() { return 1; }#endifintmain (){ ; return 0;}_ACEOFrm -f conftest.$ac_objextif { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 (eval $ac_compile) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && { ac_try='test -s conftest.$ac_objext' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; }; then ac_cv_prog_cc_g=yeselse echo "$as_me: failed program was:" >&5cat conftest.$ac_ext >&5ac_cv_prog_cc_g=nofirm -f conftest.$ac_objext conftest.$ac_extfiecho "$as_me:$LINENO: result: $ac_cv_prog_cc_g" >&5echo "${ECHO_T}$ac_cv_prog_cc_g" >&6if test "$ac_test_CFLAGS" = set; then CFLAGS=$ac_save_CFLAGSelif test $ac_cv_prog_cc_g = yes; then if test "$GCC" = yes; then CFLAGS="-g -O2" else CFLAGS="-g" fielse if test "$GCC" = yes; then CFLAGS="-O2" else CFLAGS= fifi# Some people use a C++ compiler to compile C. Since we use `exit',# in C++ we need to declare it. In case someone uses the same compiler#
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