Change #include <src/foo.h> to #include "foo.h"

The main reason we used the former since the HPC-GAP merge was to
allow us to override GAP headers with modified headers for HPC-GAP
during compilation. But now the kernel header files all have been
merged, so this is no longer necessary.

We also change <gen/config.h> back to "config.h", and adjust
the build system suitably.

The following command was used to create the changes in this commit:

sed -i '' -E -e 's;#include <(src|gen)/([^"]+)>;#include "\2";' \
  src/*.* src/hpc/*.* hpcgap/src/*.* tst/test-compile/*.c

hpcgap/src/c_oper1.c

@@ -1,6 +1,6 @@
 #ifndef AVOID_PRECOMPILED
 /* C file produced by GAC */
-#include <src/compiled.h>
+#include "compiled.h"
 #define FILE_CRC  "-110560148"
 
 /* global variables used in handlers */

hpcgap/src/c_type1.c

@@ -1,6 +1,6 @@
 #ifndef AVOID_PRECOMPILED
 /* C file produced by GAC */
-#include <src/compiled.h>
+#include "compiled.h"
 #define FILE_CRC  "-43167549"
 
 /* global variables used in handlers */

src/ariths.c

@@ -11,12 +11,12 @@
 **  This file contains the functions of the  arithmetic  operations  package.
 */
 
-#include <src/ariths.h>
+#include "ariths.h"
 
-#include <src/bool.h>
-#include <src/error.h>
-#include <src/modules.h>
-#include <src/opers.h>
+#include "bool.h"
+#include "error.h"
+#include "modules.h"
+#include "opers.h"
 
 
 /****************************************************************************

src/ariths.h

@@ -14,7 +14,7 @@
 #ifndef GAP_ARITHS_H
 #define GAP_ARITHS_H
 
-#include <src/objects.h>
+#include "objects.h"
 
 /****************************************************************************
 **

src/blister.c

@@ -70,19 +70,19 @@
 *N  1992/12/16 martin should have 'LtBlist'
 */
 
-#include <src/blister.h>
-
-#include <src/ariths.h>
-#include <src/bool.h>
-#include <src/error.h>
-#include <src/gaputils.h>
-#include <src/io.h>
-#include <src/lists.h>
-#include <src/modules.h>
-#include <src/plist.h>
-#include <src/range.h>
-#include <src/saveload.h>
-#include <src/set.h>
+#include "blister.h"
+
+#include "ariths.h"
+#include "bool.h"
+#include "error.h"
+#include "gaputils.h"
+#include "io.h"
+#include "lists.h"
+#include "modules.h"
+#include "plist.h"
+#include "range.h"
+#include "saveload.h"
+#include "set.h"
 
 
 /****************************************************************************

src/blister.h

@@ -20,8 +20,8 @@
 #ifndef GAP_BLISTER_H
 #define GAP_BLISTER_H
 
-#include <src/bool.h>
-#include <src/objects.h>
+#include "bool.h"
+#include "objects.h"
 
 /****************************************************************************
 **

src/boehm_gc.c

@@ -8,19 +8,19 @@
 **  where the non-boehm versions of these methods live.
 **/
 
-#include <src/system.h>
-#include <src/gapstate.h>
-#include <src/gasman.h>
-#include <src/objects.h>
-#include <src/sysmem.h>
+#include "system.h"
+#include "gapstate.h"
+#include "gasman.h"
+#include "objects.h"
+#include "sysmem.h"
 
-#include <src/hpc/misc.h>
-#include <src/hpc/thread.h>
-#include <src/hpc/guards.h>
+#include "hpc/misc.h"
+#include "hpc/thread.h"
+#include "hpc/guards.h"
 
 #ifdef TRACK_CREATOR
-#include <src/calls.h>
-#include <src/vars.h>
+#include "calls.h"
+#include "vars.h"
 #endif
 
 #ifndef USE_BOEHM_GC

src/bool.c

@@ -14,14 +14,14 @@
 **  True and Fail.
 */
 
-#include <src/bool.h>
-
-#include <src/ariths.h>
-#include <src/calls.h>
-#include <src/gvars.h>
-#include <src/io.h>
-#include <src/modules.h>
-#include <src/opers.h>
+#include "bool.h"
+
+#include "ariths.h"
+#include "calls.h"
+#include "gvars.h"
+#include "io.h"
+#include "modules.h"
+#include "opers.h"
 
 
 /****************************************************************************

src/bool.h

@@ -13,7 +13,7 @@
 #ifndef GAP_BOOL_H
 #define GAP_BOOL_H
 
-#include <src/objects.h>
+#include "objects.h"
 
 /****************************************************************************
 **

src/c_oper1.c

@@ -1,6 +1,6 @@
 #ifndef AVOID_PRECOMPILED
 /* C file produced by GAC */
-#include <src/compiled.h>
+#include "compiled.h"
 #define FILE_CRC  "-110560148"
 
 /* global variables used in handlers */

src/c_type1.c

@@ -1,6 +1,6 @@
 #ifndef AVOID_PRECOMPILED
 /* C file produced by GAC */
-#include <src/compiled.h>
+#include "compiled.h"
 #define FILE_CRC  "-43167549"
 
 /* global variables used in handlers */

src/calls.c

@@ -34,22 +34,22 @@
 **  ...what the other components are...
 */
 
-#include <src/calls.h>
-
-#include <src/bool.h>
-#include <src/code.h>
-#include <src/error.h>
-#include <src/gvars.h>
-#include <src/integer.h>
-#include <src/io.h>
-#include <src/lists.h>
-#include <src/modules.h>
-#include <src/opers.h>
-#include <src/plist.h>
-#include <src/saveload.h>
-#include <src/stats.h>
-#include <src/stringobj.h>
-#include <src/vars.h>
+#include "calls.h"
+
+#include "bool.h"
+#include "code.h"
+#include "error.h"
+#include "gvars.h"
+#include "integer.h"
+#include "io.h"
+#include "lists.h"
+#include "modules.h"
+#include "opers.h"
+#include "plist.h"
+#include "saveload.h"
+#include "stats.h"
+#include "stringobj.h"
+#include "vars.h"
 
 
 void SET_NAME_FUNC(Obj func, Obj name)

src/calls.h

@@ -45,8 +45,8 @@
 #ifndef GAP_CALLS_H
 #define GAP_CALLS_H
 
-#include <src/gaputils.h>
-#include <src/objects.h>
+#include "gaputils.h"
+#include "objects.h"
 
 
 typedef Obj (* ObjFunc_0ARGS) (Obj self);

src/code.c

@@ -13,28 +13,28 @@
 **  expressions.  Its functions are called from the reader.
 */
 
-#include <src/code.h>
-
-#include <src/bool.h>
-#include <src/calls.h>
-#include <src/funcs.h>
-#include <src/gapstate.h>
-#include <src/gvars.h>
-#include <src/hookintrprtr.h>
-#include <src/io.h>
-#include <src/lists.h>
-#include <src/modules.h>
-#include <src/plist.h>
-#include <src/read.h>
-#include <src/records.h>
-#include <src/saveload.h>
-#include <src/stringobj.h>
-#include <src/vars.h>
-
-#include <src/hpc/thread.h>
+#include "code.h"
+
+#include "bool.h"
+#include "calls.h"
+#include "funcs.h"
+#include "gapstate.h"
+#include "gvars.h"
+#include "hookintrprtr.h"
+#include "io.h"
+#include "lists.h"
+#include "modules.h"
+#include "plist.h"
+#include "read.h"
+#include "records.h"
+#include "saveload.h"
+#include "stringobj.h"
+#include "vars.h"
+
+#include "hpc/thread.h"
 
 #ifdef HPCGAP
-#include <src/hpc/aobjects.h>
+#include "hpc/aobjects.h"
 #endif
 
 

src/code.h

@@ -16,8 +16,8 @@
 #ifndef GAP_CODE_H
 #define GAP_CODE_H
 
-#include <src/debug.h>
-#include <src/objects.h>
+#include "debug.h"
+#include "objects.h"
 
 /****************************************************************************
 **

src/compiled.h

@@ -14,65 +14,65 @@ extern "C" {
 #define GAP_IN_EXTERN_C
 #endif
 
-#include <src/ariths.h>
-#include <src/blister.h>
-#include <src/bool.h>
-#include <src/calls.h>
-#include <src/code.h>
-#include <src/compiler.h>
-#include <src/compstat.h>
-#include <src/costab.h>
-#include <src/cyclotom.h>
-#include <src/dt.h>
-#include <src/dteval.h>
-#include <src/error.h>
-#include <src/exprs.h>
-#include <src/finfield.h>
-#include <src/funcs.h>
-#include <src/gap.h>
-#include <src/gapstate.h>
-#include <src/gasman.h>
-#include <src/gvars.h>
-#include <src/integer.h>
-#include <src/intrprtr.h>
-#include <src/io.h>
-#include <src/iostream.h>
-#include <src/listfunc.h>
-#include <src/listoper.h>
-#include <src/lists.h>
-#include <src/macfloat.h>
-#include <src/modules.h>
-#include <src/objcftl.h>
-#include <src/objects.h>
-#include <src/objfgelm.h>
-#include <src/objpcgel.h>
-#include <src/objscoll.h>
-#include <src/opers.h>
-#include <src/permutat.h>
-#include <src/plist.h>
-#include <src/pperm.h>
-#include <src/precord.h>
-#include <src/range.h>
-#include <src/rational.h>
-#include <src/read.h>
-#include <src/records.h>
-#include <src/saveload.h>
-#include <src/scanner.h>
-#include <src/sctable.h>
-#include <src/set.h>
-#include <src/stats.h>
-#include <src/streams.h>
-#include <src/stringobj.h>
-#include <src/sysfiles.h>
-#include <src/system.h>
-#include <src/tietze.h>
-#include <src/trans.h>
-#include <src/vars.h>
-#include <src/vector.h>
-#include <src/weakptr.h>
+#include "ariths.h"
+#include "blister.h"
+#include "bool.h"
+#include "calls.h"
+#include "code.h"
+#include "compiler.h"
+#include "compstat.h"
+#include "costab.h"
+#include "cyclotom.h"
+#include "dt.h"
+#include "dteval.h"
+#include "error.h"
+#include "exprs.h"
+#include "finfield.h"
+#include "funcs.h"
+#include "gap.h"
+#include "gapstate.h"
+#include "gasman.h"
+#include "gvars.h"
+#include "integer.h"
+#include "intrprtr.h"
+#include "io.h"
+#include "iostream.h"
+#include "listfunc.h"
+#include "listoper.h"
+#include "lists.h"
+#include "macfloat.h"
+#include "modules.h"
+#include "objcftl.h"
+#include "objects.h"
+#include "objfgelm.h"
+#include "objpcgel.h"
+#include "objscoll.h"
+#include "opers.h"
+#include "permutat.h"
+#include "plist.h"
+#include "pperm.h"
+#include "precord.h"
+#include "range.h"
+#include "rational.h"
+#include "read.h"
+#include "records.h"
+#include "saveload.h"
+#include "scanner.h"
+#include "sctable.h"
+#include "set.h"
+#include "stats.h"
+#include "streams.h"
+#include "stringobj.h"
+#include "sysfiles.h"
+#include "system.h"
+#include "tietze.h"
+#include "trans.h"
+#include "vars.h"
+#include "vector.h"
+#include "weakptr.h"
 
 #ifdef HPCGAP
-#include <src/hpc/aobjects.h>
+#include "hpc/aobjects.h"
 #endif
 
 extern Obj InfoDecision;