[MacPorts] #66458: libgcc12 @12.2.0 fails to configure - include mpc.h broken

[MacPorts]

#66458: libgcc12 @12.2.0 fails to configure - include mpc.h broken
--------------------+-----------------------------
 Reporter:  vallon  |      Owner:  (none)
     Type:  defect  |     Status:  new
 Priority:  Normal  |  Milestone:
Component:  ports   |    Version:  2.8.0
 Keywords:          |       Port:  libgcc12 libmpc
--------------------+-----------------------------
 One of the configure checks for libgcc12 is failing.  It is checking MPC
 version is >= 0.8.0, but instead has trouble compiling the check driver.

 The build seems to be choking on a simple include of <mpc.h>.

 {{{
 $ port build libgcc12
 /usr/bin/clang -arch x86_64 -c -pipe -Os
 -isysroot/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX13.sdk
 -I/opt/local/include -I/opt/local/include -I/opt/local/include
 -I/opt/local/include
 -isysroot/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX13.sdk
 conftest.c
 In file included from conftest.c:10:
 /opt/local/include/mpc.h:287:35: error: unknown type name 'FILE'
 __MPC_DECLSPEC void mpcr_out_str (FILE *f, mpcr_srcptr r);
                                   ^
 1 error generated.
 configure: failed program was:
 | /* confdefs.h */
 | #define PACKAGE_NAME ""
 | #define PACKAGE_TARNAME ""
 | #define PACKAGE_VERSION ""
 | #define PACKAGE_STRING ""
 | #define PACKAGE_BUGREPORT ""
 | #define PACKAGE_URL ""
 | #define LT_OBJDIR ".libs/"
 | /* end confdefs.h.  */
 | #include <mpc.h>
 | int
 | main ()
 | {
 |
 |     #if MPC_VERSION < MPC_VERSION_NUM(0,8,0)
 |     choke me
 |     #endif
 |
 |   ;
 |   return 0;
 | }
 }}}

 Can be reproduced with just an include:

 {{{
 $ cat x.c
 #include <mpc.h>
 $ /usr/bin/clang -arch x86_64 -c -pipe -Os
 -isysroot/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX13.sdk
 -I/opt/local/include x.c
 In file included from x.c:1:
 /opt/local/include/mpc.h:287:35: error: unknown type name 'FILE'
 __MPC_DECLSPEC void mpcr_out_str (FILE *f, mpcr_srcptr r);
                                   ^
 }}}

 System: OS 13, xcodebuild -version "Xcode 14.1, Build version 14B47b"

-- 
Ticket URL: <https://trac.macports.org/ticket/66458>
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