CDRIVER-4136 Update cmd scripts to use strict C99 via CMake config vars (#1086)

Author: eramongodb

.evergreen/compile-windows-mingw.bat

@@ -6,7 +6,7 @@ set CMAKE=C:\cmake\bin\cmake
 set CMAKE_MAKE_PROGRAM=C:\mingw-w64\x86_64-4.9.1-posix-seh-rt_v3-rev1\mingw64\bin\mingw32-make.exe
 set CC=C:\mingw-w64\x86_64-4.9.1-posix-seh-rt_v3-rev1\mingw64\bin\gcc.exe
 
-%CMAKE% -G "MinGW Makefiles" -DCMAKE_MAKE_PROGRAM=%CMAKE_MAKE_PROGRAM% -DCMAKE_PREFIX_PATH=%INSTALL_DIR%\lib\cmake -DCMAKE_C_FLAGS="-std=c99 -pedantic" %CONFIGURE_FLAGS%
+%CMAKE% -G "MinGW Makefiles" -DCMAKE_MAKE_PROGRAM=%CMAKE_MAKE_PROGRAM% -DCMAKE_PREFIX_PATH=%INSTALL_DIR%\lib\cmake -DCMAKE_C_STANDARD=99 -DCMAKE_C_STANDARD_REQUIRED=ON -DCMAKE_C_EXTENSIONS=OFF  %CONFIGURE_FLAGS%
 
 %CMAKE_MAKE_PROGRAM%
 

.evergreen/install-uninstall-check-windows.cmd

@@ -43,7 +43,7 @@ if "%BSON_ONLY%"=="1" (
 
 echo.%CC%| findstr /I "gcc">Nul && (
   rem Build libmongoc, with flags that the downstream R driver mongolite uses
-  %CMAKE% -G "MinGW Makefiles" -DCMAKE_MAKE_PROGRAM=%CMAKE_MAKE_PROGRAM% -DCMAKE_INSTALL_PREFIX=%INSTALL_DIR% -DCMAKE_CFLAGS="-std=c99 -pedantic" -DCMAKE_PREFIX_PATH=%INSTALL_DIR%\lib\cmake %BSON_ONLY_OPTION% .
+  %CMAKE% -G "MinGW Makefiles" -DCMAKE_MAKE_PROGRAM=%CMAKE_MAKE_PROGRAM% -DCMAKE_INSTALL_PREFIX=%INSTALL_DIR% -DCMAKE_C_STANDARD=99 -DCMAKE_C_STANDARD_REQUIRED=ON -DCMAKE_C_EXTENSIONS=OFF  -DCMAKE_PREFIX_PATH=%INSTALL_DIR%\lib\cmake %BSON_ONLY_OPTION% .
   %CMAKE% --build .
   if errorlevel 1 (
      exit /B 1

.evergreen/link-sample-program-mingw-bson.cmd

@@ -27,7 +27,7 @@ cd %BUILD_DIR%
 %TAR% xf ..\..\mongoc.tar.gz -C . --strip-components=1
 
 rem Build libmongoc, with flags that the downstream R driver mongolite uses
-%CMAKE% -G "MinGW Makefiles" -DCMAKE_MAKE_PROGRAM=%CMAKE_MAKE_PROGRAM% -DCMAKE_INSTALL_PREFIX=%INSTALL_DIR% -DCMAKE_CFLAGS="-std=c99 -pedantic" -DCMAKE_PREFIX_PATH=%INSTALL_DIR%\lib\cmake -DENABLE_BSON=ON -DENABLE_STATIC=ON .
+%CMAKE% -G "MinGW Makefiles" -DCMAKE_MAKE_PROGRAM=%CMAKE_MAKE_PROGRAM% -DCMAKE_INSTALL_PREFIX=%INSTALL_DIR% -DCMAKE_C_STANDARD=99 -DCMAKE_C_STANDARD_REQUIRED=ON -DCMAKE_C_EXTENSIONS=OFF -DCMAKE_PREFIX_PATH=%INSTALL_DIR%\lib\cmake -DENABLE_BSON=ON -DENABLE_STATIC=ON .
 %CMAKE% --build .
 if errorlevel 1 (
    exit /B 1

.evergreen/link-sample-program-mingw.cmd

@@ -27,7 +27,7 @@ cd %BUILD_DIR%
 %TAR% xf ..\..\mongoc.tar.gz -C . --strip-components=1
 
 rem Build libmongoc, with flags that the downstream R driver mongolite uses
-%CMAKE% -G "MinGW Makefiles" -DCMAKE_MAKE_PROGRAM=%CMAKE_MAKE_PROGRAM% -DCMAKE_INSTALL_PREFIX=%INSTALL_DIR% -DCMAKE_CFLAGS="-std=c99 -pedantic" -DCMAKE_PREFIX_PATH=%INSTALL_DIR%\lib\cmake %CMAKE_FLAGS% -DENABLE_BSON=ON .
+%CMAKE% -G "MinGW Makefiles" -DCMAKE_MAKE_PROGRAM=%CMAKE_MAKE_PROGRAM% -DCMAKE_INSTALL_PREFIX=%INSTALL_DIR% -DCMAKE_C_STANDARD=99 -DCMAKE_C_STANDARD_REQUIRED=ON -DCMAKE_C_EXTENSIONS=OFF -DCMAKE_PREFIX_PATH=%INSTALL_DIR%\lib\cmake %CMAKE_FLAGS% -DENABLE_BSON=ON .
 %CMAKE% --build .
 if errorlevel 1 (
    exit /B 1