fix MetaModelica examples on mingw

- this is until we fix PR: #2138
- compile also with -fno-ipa-pure-const
- link functions with -lOpenModelicaCompiler if MetaModelica flag is on

Belonging to [master]:
  - #2654

Author: adrpo

Compiler/Template/CodegenC.tpl

@@ -5780,11 +5780,13 @@ case SIMCODE(modelInfo=MODELINFO(varInfo=varInfo as VARINFO(__)), delayedExps=DE
   let libsPos2 = if dirExtra then libsStr // else ""
   let ParModelicaExpLibs = if acceptParModelicaGrammar() then '-lParModelicaExpl -lOpenCL' // else ""
   let ParModelicaAutoLibs = if Flags.isSet(Flags.PARMODAUTO) then '-lParModelicaAuto -ltbb -lpugixml -lboost_system' // else ""
+  let ExtraStack = if boolOr(stringEq(makefileParams.platform, "win32"),stringEq(makefileParams.platform, "win64")) then '--stack,16777216,'
   let extraCflags = match sopt case SOME(s as SIMULATION_SETTINGS(__)) then
     match s.method case "dassljac" then "-D_OMC_JACOBIAN "
 
   <<
   # Makefile generated by OpenModelica
+  # Platform: <%makefileParams.platform%>
 
   # Simulations use -O3 by default
   CC=<%if boolOr(Flags.isSet(Flags.PARMODAUTO),acceptParModelicaGrammar()) then 'g++' else '<%makefileParams.ccompiler%>'%>
@@ -5799,7 +5801,7 @@ case SIMCODE(modelInfo=MODELINFO(varInfo=varInfo as VARINFO(__)), delayedExps=DE
   %>CPPFLAGS=<%makefileParams.includes ; separator=" "%> -I"<%makefileParams.omhome%>/include/omc/c" -I. -DOPENMODELICA_XML_FROM_FILE_AT_RUNTIME<% if stringEq(Config.simCodeTarget(),"JavaScript") then " -DOMC_EMCC"%><% if Flags.isSet(Flags.OMC_RELOCATABLE_FUNCTIONS) then " -DOMC_GENERATE_RELOCATABLE_CODE"%> -DOMC_MODEL_PREFIX=<%modelNamePrefix(simCode)%> -DOMC_NUM_MIXED_SYSTEMS=<%varInfo.numMixedSystems%> -DOMC_NUM_LINEAR_SYSTEMS=<%varInfo.numLinearSystems%> -DOMC_NUM_NONLINEAR_SYSTEMS=<%varInfo.numNonLinearSystems%> -DOMC_NDELAY_EXPRESSIONS=<%maxDelayedIndex%> -DOMC_NVAR_STRING=<%varInfo.numStringAlgVars%>
   LDFLAGS=<%
   if stringEq(Config.simCodeTarget(),"JavaScript") then <<-L'<%makefileParams.omhome%>/lib/<%getTriple()%>/omc/emcc' -lblas -llapack -lexpat -lSimulationRuntimeC -s TOTAL_MEMORY=805306368 -s OUTLINING_LIMIT=20000 --pre-js $(OMC_EMCC_PRE_JS)>>
-  else <<-L"<%makefileParams.omhome%>/lib/<%getTriple()%>/omc" -L"<%makefileParams.omhome%>/lib" -Wl,<% if boolOr(stringEq(makefileParams.platform, "win32"),stringEq(makefileParams.platform, "win64")) then "--stack,16777216,"%>-rpath,"<%makefileParams.omhome%>/lib/<%getTriple()%>/omc" -Wl,-rpath,"<%makefileParams.omhome%>/lib" <%ParModelicaExpLibs%> <%ParModelicaAutoLibs%> <%makefileParams.ldflags%> <%makefileParams.runtimelibs%> >>
+  else <<-L"<%makefileParams.omhome%>/lib/<%getTriple()%>/omc" -L"<%makefileParams.omhome%>/lib" -Wl,<%ExtraStack%>-rpath,"<%makefileParams.omhome%>/lib/<%getTriple()%>/omc" -Wl,-rpath,"<%makefileParams.omhome%>/lib" <%ParModelicaExpLibs%> <%ParModelicaAutoLibs%> <%makefileParams.ldflags%> <%makefileParams.runtimelibs%> >>
   %>
   DIREXTRA=<%stringReplace(dirExtra,"#","\\#") /* make strips everything after # */%>
   MAINFILE=<%fileNamePrefix%>.c

Compiler/Template/CodegenCFunctions.tpl

@@ -237,9 +237,12 @@ match fnCode
 case FUNCTIONCODE(makefileParams=MAKEFILE_PARAMS(__)) then
   let libsStr = (makefileParams.libs ;separator=" ")
   let ParModelicaExpLibs = if acceptParModelicaGrammar() then '-lParModelicaExpl -lOpenCL' // else ""
+  let ExtraStack = if boolOr(stringEq(makefileParams.platform, "win32"),stringEq(makefileParams.platform, "win64")) then '--stack,16777216,'
+  let WinMingwExtraLibs = if boolAnd(acceptMetaModelicaGrammar(), boolOr(stringEq(makefileParams.platform, "win32"),stringEq(makefileParams.platform, "win64"))) then '-lOpenModelicaCompiler'
 
   <<
   # Makefile generated by OpenModelica
+  # Platform: <%makefileParams.platform%>
 
   # Dynamic loading uses -O0 by default
   SIM_OR_DYNLOAD_OPT_LEVEL=-O0
@@ -253,7 +256,7 @@ case FUNCTIONCODE(makefileParams=MAKEFILE_PARAMS(__)) then
   CPPFLAGS= -I"<%makefileParams.omhome%>/include/omc/c" <%makefileParams.includes ; separator=" "%><%
     if Flags.isSet(Flags.OMC_RELOCATABLE_FUNCTIONS) then " -DOMC_GENERATE_RELOCATABLE_CODE"
   %>
-  LDFLAGS= -L"<%makefileParams.omhome%>/lib/<%getTriple()%>/omc" -Wl,-rpath,'<%makefileParams.omhome%>/lib/<%getTriple()%>/omc' <%ParModelicaExpLibs%> <%makefileParams.ldflags%> <%makefileParams.runtimelibs%>
+  LDFLAGS= -L"<%makefileParams.omhome%>/lib/<%getTriple()%>/omc" -Wl,<%ExtraStack%>-rpath,'<%makefileParams.omhome%>/lib/<%getTriple()%>/omc' <%ParModelicaExpLibs%> <%WinMingwExtraLibs%> <%makefileParams.ldflags%> <%makefileParams.runtimelibs%>
   PERL=perl
   MAINFILE=<%name%>.c
 

Compiler/runtime/omc_config.h

@@ -115,9 +115,9 @@
    * Visual Studio then use the SSE instructions,
    * not the normal i387 FPU
    */
-  #define DEFAULT_CFLAGS "-falign-functions -mstackrealign -msse2 -mfpmath=sse ${MODELICAUSERCFLAGS}"
+  #define DEFAULT_CFLAGS "-falign-functions -fno-ipa-pure-const -mstackrealign -msse2 -mfpmath=sse ${MODELICAUSERCFLAGS}"
 #else
-  #define DEFAULT_CFLAGS "-falign-functions ${MODELICAUSERCFLAGS}"
+  #define DEFAULT_CFLAGS "-falign-functions -fno-ipa-pure-const ${MODELICAUSERCFLAGS}"
 #endif
 #if defined(__x86_64__)
   /* -fPIC needed on x86_64! */