bpo-45548: Remove checks for finite and gamma (GH-29206)

Author: tiran

configure

@@ -15092,7 +15092,7 @@ fi
 LIBS_SAVE=$LIBS
 LIBS="$LIBS $LIBM"
 
-for ac_func in acosh asinh atanh erf erfc expm1 finite gamma lgamma log1p log2 tgamma
+for ac_func in acosh asinh atanh erf erfc expm1 log1p log2
 do :
   as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
 ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"

configure.ac

@@ -4693,7 +4693,7 @@ LIBS_SAVE=$LIBS
 LIBS="$LIBS $LIBM"
 
 AC_CHECK_FUNCS(
-  [acosh asinh atanh erf erfc expm1 finite gamma lgamma log1p log2 tgamma],
+  [acosh asinh atanh erf erfc expm1 log1p log2],
   [],
   [AC_MSG_ERROR([Python requires C99 compatible libm])]
 )

pyconfig.h.in

@@ -353,9 +353,6 @@
 /* Define to 1 if you have the `fexecve' function. */
 #undef HAVE_FEXECVE
 
-/* Define to 1 if you have the `finite' function. */
-#undef HAVE_FINITE
-
 /* Define to 1 if you have the `flock' function. */
 #undef HAVE_FLOCK
 
@@ -407,9 +404,6 @@
 /* Define to 1 if you have the `gai_strerror' function. */
 #undef HAVE_GAI_STRERROR
 
-/* Define to 1 if you have the `gamma' function. */
-#undef HAVE_GAMMA
-
 /* Define if we can use gcc inline assembler to get and set mc68881 fpcr */
 #undef HAVE_GCC_ASM_FOR_MC68881
 
@@ -586,9 +580,6 @@
 /* Define to 1 if you have the `lchown' function. */
 #undef HAVE_LCHOWN
 
-/* Define to 1 if you have the `lgamma' function. */
-#undef HAVE_LGAMMA
-
 /* Define to 1 if you have the `dl' library (-ldl). */
 #undef HAVE_LIBDL
 
@@ -1238,9 +1229,6 @@
 /* Define to 1 if you have the <term.h> header file. */
 #undef HAVE_TERM_H
 
-/* Define to 1 if you have the `tgamma' function. */
-#undef HAVE_TGAMMA
-
 /* Define to 1 if you have the `timegm' function. */
 #undef HAVE_TIMEGM