✏️ Editing: config.m4.in

dnl config.m4 for extension %EXTNAME%

dnl Comments in this file start with the string 'dnl'.
dnl Remove where necessary.

dnl If your extension references something external, use 'with':

dnl PHP_ARG_WITH([%EXTNAME%],
dnl   [for %EXTNAME% support],
dnl   [AS_HELP_STRING([--with-%EXTNAME%],
dnl     [Include %EXTNAME% support])])

dnl Otherwise use 'enable':

PHP_ARG_ENABLE([%EXTNAME%],
  [whether to enable %EXTNAME% support],
  [AS_HELP_STRING([--enable-%EXTNAME%],
    [Enable %EXTNAME% support])],
  [no])

if test "$PHP_%EXTNAMECAPS%" != "no"; then
  dnl Write more examples of tests here...

dnl Remove this code block if the library does not support pkg-config.
  dnl PKG_CHECK_MODULES([LIBFOO], [foo])
  dnl PHP_EVAL_INCLINE($LIBFOO_CFLAGS)
  dnl PHP_EVAL_LIBLINE($LIBFOO_LIBS, %EXTNAMECAPS%_SHARED_LIBADD)

dnl If you need to check for a particular library version using PKG_CHECK_MODULES,
  dnl you can use comparison operators. For example:
  dnl PKG_CHECK_MODULES([LIBFOO], [foo >= 1.2.3])
  dnl PKG_CHECK_MODULES([LIBFOO], [foo < 3.4])
  dnl PKG_CHECK_MODULES([LIBFOO], [foo = 1.2.3])

dnl Remove this code block if the library supports pkg-config.
  dnl --with-%EXTNAME% -> check with-path
  dnl SEARCH_PATH="/usr/local /usr"     # you might want to change this
  dnl SEARCH_FOR="/include/%EXTNAME%.h"  # you most likely want to change this
  dnl if test -r $PHP_%EXTNAMECAPS%/$SEARCH_FOR; then # path given as parameter
  dnl   %EXTNAMECAPS%_DIR=$PHP_%EXTNAMECAPS%
  dnl else # search default path list
  dnl   AC_MSG_CHECKING([for %EXTNAME% files in default path])
  dnl   for i in $SEARCH_PATH ; do
  dnl     if test -r $i/$SEARCH_FOR; then
  dnl       %EXTNAMECAPS%_DIR=$i
  dnl       AC_MSG_RESULT(found in $i)
  dnl     fi
  dnl   done
  dnl fi
  dnl
  dnl if test -z "$%EXTNAMECAPS%_DIR"; then
  dnl   AC_MSG_RESULT([not found])
  dnl   AC_MSG_ERROR([Please reinstall the %EXTNAME% distribution])
  dnl fi

dnl Remove this code block if the library supports pkg-config.
  dnl --with-%EXTNAME% -> add include path
  dnl PHP_ADD_INCLUDE($%EXTNAMECAPS%_DIR/include)

dnl Remove this code block if the library supports pkg-config.
  dnl --with-%EXTNAME% -> check for lib and symbol presence
  dnl LIBNAME=%EXTNAMECAPS% # you may want to change this
  dnl LIBSYMBOL=%EXTNAMECAPS% # you most likely want to change this

dnl If you need to check for a particular library function (e.g. a conditional
  dnl or version-dependent feature) and you are using pkg-config:
  dnl PHP_CHECK_LIBRARY($LIBNAME, $LIBSYMBOL,
  dnl [
  dnl   AC_DEFINE(HAVE_%EXTNAMECAPS%_FEATURE, 1, [ ])
  dnl ],[
  dnl   AC_MSG_ERROR([FEATURE not supported by your %EXTNAME% library.])
  dnl ], [
  dnl   $LIBFOO_LIBS
  dnl ])

dnl If you need to check for a particular library function (e.g. a conditional
  dnl or version-dependent feature) and you are not using pkg-config:
  dnl PHP_CHECK_LIBRARY($LIBNAME, $LIBSYMBOL,
  dnl [
  dnl   PHP_ADD_LIBRARY_WITH_PATH($LIBNAME, $%EXTNAMECAPS%_DIR/$PHP_LIBDIR, %EXTNAMECAPS%_SHARED_LIBADD)
  dnl   AC_DEFINE(HAVE_%EXTNAMECAPS%_FEATURE, 1, [ ])
  dnl ],[
  dnl   AC_MSG_ERROR([FEATURE not supported by your %EXTNAME% library.])
  dnl ],[
  dnl   -L$%EXTNAMECAPS%_DIR/$PHP_LIBDIR -lm
  dnl ])
  dnl
  dnl PHP_SUBST(%EXTNAMECAPS%_SHARED_LIBADD)

dnl In case of no dependencies
  AC_DEFINE(HAVE_%EXTNAMECAPS%, 1, [ Have %EXTNAME% support ])

PHP_NEW_EXTENSION(%EXTNAME%, %EXTNAME%.c, $ext_shared)
fi

✏️ Editing: config.m4.in

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Directory: /usr/src/php-7.4.23/ext/skeleton