diff --git a/test/Jamfile.v2 b/test/Jamfile.v2
index a9dddfb..3acc39a 100644
--- a/test/Jamfile.v2
+++ b/test/Jamfile.v2
@@ -7,15 +7,14 @@ import testing ;
 
 project hash-tests
     : requirements
-        <warnings>all
+        <warnings>pedantic
         <toolset>intel:<warnings>on
-        #<toolset>intel:<cxxflags>-strict-ansi
-        <toolset>gcc:<cxxflags>"-pedantic -Wstrict-aliasing -fstrict-aliasing -Wextra -Wsign-promo -Wunused-parameter -Wconversion -Wfloat-equal -Wshadow"
-        <toolset>darwin:<cxxflags>"-pedantic -Wstrict-aliasing -fstrict-aliasing -Wextra -Wsign-promo -Wunused-parameter -Wconversion -Wfloat-equal -Wshadow"
-        <toolset>clang:<cxxflags>"-pedantic -Wstrict-aliasing -fstrict-aliasing -Wextra -Wsign-promo -Wunused-parameter -Wsign-conversion -Wconversion -Wfloat-equal -Wshadow"
-        #<toolset>msvc:<warnings-as-errors>on
-        #<toolset>gcc:<warnings-as-errors>on
-        #<toolset>darwin:<warnings-as-errors>on
+        <toolset>gcc:<cxxflags>"-Wstrict-aliasing -Wsign-promo -Wunused-parameter -Wconversion -Wfloat-equal -Wshadow"
+        <toolset>darwin:<cxxflags>"-Wstrict-aliasing -Wsign-promo -Wunused-parameter -Wconversion -Wfloat-equal -Wshadow"
+        <toolset>clang:<cxxflags>"-Wstrict-aliasing -Wsign-promo -Wunused-parameter -Wsign-conversion -Wconversion -Wfloat-equal -Wshadow"
+        <toolset>msvc:<warnings-as-errors>on
+        <toolset>gcc:<warnings-as-errors>on
+        <toolset>clang:<warnings-as-errors>on
     ;
 
 test-suite container_hash/hash