Check for undeclared functions

Belonging to [master]:
  - #2116
  - OpenModelica/OpenModelica-testsuite#829

Author: sjoelund

Compiler/boot/Makefile.in

@@ -4,7 +4,7 @@
 
 CC=@CC@
 CXX=@CXX@
-CFLAGS=@CFLAGS@
+CFLAGS=@CFLAGS@ @CHECK_C_ERRORS@
 TOP_DIR=@abs_top_builddir@
 OMHOME=@OMBUILDDIR@
 OMBUILDDIR=@OMBUILDDIR@

Compiler/runtime/Makefile.in

@@ -12,7 +12,7 @@ GRAPHINCLUDE=../../3rdParty/metis-5.1.0/include
 GRAPHSTREAMINCLUDE = ../../3rdParty/graphstream/gs-netstream/c++/src/
 CJSONINCLUDE = ../../3rdParty/cJSON
 ZMQINCLUDE = ../../3rdParty/libzmq/include
-CFLAGS = @CFLAGS@ $(USE_CORBA)
+CFLAGS = @CFLAGS@ @CHECK_C_ERRORS@ $(USE_CORBA)
 OMPCC = @CC@ @OMPCFLAGS@
 OMBUILDDIR = @OMBUILDDIR@
 OMC=@OMC@

SimulationRuntime/c/Makefile.in

@@ -19,7 +19,7 @@ IPOPT_CFLAGS=@IPOPT_CFLAGS@
 else
 IPOPT_CFLAGS=
 endif
-CONFIG_CFLAGS = @CFLAGS@ $(IPOPT_CFLAGS)
+CONFIG_CFLAGS = @CHECK_C_ERRORS@ @CFLAGS@ $(IPOPT_CFLAGS)
 FPMATHFORTRAN = @FPMATHFORTRAN@
 OMBUILDDIR = @OMBUILDDIR@
 

SimulationRuntime/c/simulation/solver/dassl.h

@@ -93,4 +93,7 @@ dassl_initial(DATA* simData, threadData_t *threadData, SOLVER_INFO* solverInfo,
 int
 dassl_deinitial(DASSL_DATA *dasslData);
 
+int printCurrentStatesVector(int logLevel, double* states, DATA* data, double time);
+int printVector(int logLevel, const char* name,  double* vec, int n, double time);
+
 #endif

SimulationRuntime/c/simulation/solver/ida_solver.c

@@ -51,6 +51,7 @@
 #include "simulation/solver/epsilon.h"
 #include "simulation/solver/omc_math.h"
 #include "simulation/solver/ida_solver.h"
+#include "simulation/solver/dassl.h"
 
 #ifdef WITH_SUNDIALS
 
@@ -298,7 +299,7 @@ ida_solver_initial(DATA* data, threadData_t *threadData, SOLVER_INFO* solverInfo
     flag = IDASetMaxOrd(idaData->ida_mem, maxOrder);
     if (checkIDAflag(flag)){
       throwStreamPrint(threadData, "##IDA## Failed to set max integration order!");
-	  }
+    }
   }
   infoStreamPrint(LOG_SOLVER, 0, "maximum integration order %d", maxOrder);
 
@@ -911,7 +912,7 @@ ida_solver_step(DATA* data, threadData_t *threadData, SOLVER_INFO* solverInfo)
         }
       } else {
         break;
-			}
+      }
     }
 
   } while(!finished);

configure.ac

@@ -12,6 +12,7 @@ AC_SUBST(with_paradiseo_include)
 AC_SUBST(with_paradiseo_lib)
 AC_SUBST(with_qwt)
 AC_SUBST(with_qwt_suffix)
+AC_SUBST(CHECK_C_ERRORS)
 AC_SUBST(EXTRA_CFLAGS_GENERATED_CODE)
 AC_SUBST(HAVE_GETTEXT)
 AC_SUBST(LIBSOCKET)
@@ -206,9 +207,19 @@ for flag in $TRY_FLAGS; do
   AC_TRY_LINK([], [return 0;], [CFLAGS="$OLD_CFLAGS $flag"],[CFLAGS="$OLD_CFLAGS"])
 done
 OLD_CFLAGS="$CFLAGS"
-for flag in -Wno-parentheses-equality -Wno-unused-variable -Werror=implicit-function-declaration; do
+for flag in -Wno-parentheses-equality -Wno-unused-variable; do
   CFLAGS="$RUNTIMECFLAGS $flag -Werror"
-  AC_TRY_LINK([], [return 0;], [EXTRA_CFLAGS_GENERATED_CODE="$EXTRA_CFLAGS_GENERATED_CODE $flag"],[])
+  AC_TRY_LINK([], [return 0;], [
+    CHECK_C_ERRORS="$CHECK_C_ERRORS $flag"
+    EXTRA_CFLAGS_GENERATED_CODE="$EXTRA_CFLAGS_GENERATED_CODE $flag"
+  ],[])
+done
+for flag in -Werror=implicit-function-declaration; do
+  CFLAGS="$RUNTIMECFLAGS $flag -Werror"
+  AC_TRY_LINK([], [return 0;], [
+    CHECK_C_ERRORS="$CHECK_C_ERRORS $flag"
+    EXTRA_CFLAGS_GENERATED_CODE="$EXTRA_CFLAGS_GENERATED_CODE $flag"
+  ],[])
 done
 CFLAGS="$OLD_CFLAGS"