Enhance SConstruct by enabling arbitrary compiler flags (#30484)

* Update SConstruct allow no-inline

Allows disabling inline functions when compiling to help with the debugging process

* Update SConstruct

typos

* Update SConstruct
old-commit-hash: 05e4d908dfbac3444466263639ec6ac5f5d8f235

SConstruct

@@ -38,6 +38,12 @@ AddOption('--compile_db',
           action='store_true',
           help='build clang compilation database')
           
+AddOption('--ccflags',
+          action='store',
+          type='string',
+          default='',
+          help='pass arbitrary flags over the command line')
+
 AddOption('--snpe',
           action='store_true',
           help='use SNPE on PC')
@@ -170,6 +176,10 @@ if arch != "Darwin":
 cflags += ['-DSWAGLOG="\\"common/swaglog.h\\""']
 cxxflags += ['-DSWAGLOG="\\"common/swaglog.h\\""']
 
+ccflags_option = GetOption('ccflags')
+if ccflags_option:
+  ccflags += ccflags_option.split(' ')
+
 env = Environment(
   ENV=lenv,
   CCFLAGS=[