[Bison] Raised Minimum Bison Version from 3.0 to 3.3

Raised the minimum Bison version to 3.3 since deprecation warnings were
showing up in libblifparse and libsdcparse which could not be resolved
unless the Bison version was 3.3.

Author: AlexandreSinger

libs/EXTERNAL/libblifparse/CMakeLists.txt

@@ -13,7 +13,7 @@ if(${CMAKE_SOURCE_DIR} STREQUAL ${CMAKE_CURRENT_SOURCE_DIR})
 endif()
 
 #Flex and Bison are used to generate the parser
-find_package(BISON REQUIRED 3.0)
+find_package(BISON REQUIRED 3.3)
 find_package(FLEX REQUIRED)
 
 file(GLOB_RECURSE LIB_SOURCES src/blif*.cpp)

libs/EXTERNAL/libblifparse/src/blif_parser.y

@@ -1,5 +1,5 @@
-/* C++ parsers require Bison 3 */
-%require "3.0"
+/* C++ parsers require Bison 3.3 */
+%require "3.3"
 %language "C++"
 
 /* Write-out tokens header file */
@@ -34,7 +34,7 @@
 %define api.namespace {blifparse}
 
 /* Name the parser class */
-%define parser_class_name {Parser}
+%define api.parser.class {Parser}
 
 /* Match the flex prefix */
 %define api.prefix {blifparse_}

libs/EXTERNAL/libsdcparse/CMakeLists.txt

@@ -13,7 +13,7 @@ if(${CMAKE_SOURCE_DIR} STREQUAL ${CMAKE_CURRENT_SOURCE_DIR})
 endif()
 
 #Flex and Bison are used to generate the parser
-find_package(BISON REQUIRED 3.0)
+find_package(BISON REQUIRED 3.3)
 find_package(FLEX REQUIRED)
 
 file(GLOB_RECURSE LIB_SOURCES src/sdc*.cpp)

libs/EXTERNAL/libsdcparse/src/sdc_parser.y

@@ -1,5 +1,5 @@
-/* C++ parsers require Bison 3 */
-%require "3.0"
+/* C++ parsers require Bison 3.3 */
+%require "3.3"
 %language "C++"
 
 /* Write-out tokens header file */
@@ -34,7 +34,7 @@
 %define api.namespace {sdcparse}
 
 /* Name the parser class */
-%define parser_class_name {Parser}
+%define api.parser.class {Parser}
 
 /* Match the flex prefix */
 %define api.prefix {sdcparse_}