do not use disable diagnostics pragma for gcc or clang

Author: eddelbuettel

.Rbuildignore

@@ -6,3 +6,4 @@ vignettes/jss.bst
 debian
 ^.*\.Rproj$
 ^\.Rproj\.user$
+\.tar\.gz$

ChangeLog

@@ -3,6 +3,10 @@
 	* inst/include/Eigen/src/Core/arch/CUDA/Half.h (Eigen): Condition use
 	of long long and unsigned long on C++11
 
+	* inst/include/Eigen/src/Core/arch/SSE/Complex.h (Eigen): Comment-out
+	use of diagnostic-suppressing pragma for gcc + clang to satisfy CRAN
+	* inst/include/Eigen/src/Core/util/DisableStupidWarnings.h: Idem
+
 2018-02-04  Yixuan Qiu  <yixuan.qiu@cos.name>
 
 	[ In RcppEigen 0.3.3.* branch ]

inst/include/Eigen/src/Core/arch/SSE/Complex.h

@@ -98,10 +98,10 @@ template<> EIGEN_STRONG_INLINE Packet2cf pset1<Packet2cf>(const std::complex<flo
   res.v = _mm_loadl_pi(_mm_set1_ps(0.0f), reinterpret_cast<const __m64*>(&from));
 #elif EIGEN_GNUC_AT_LEAST(4,6)
   // Suppress annoying "may be used uninitialized in this function" warning with gcc >= 4.6
-  #pragma GCC diagnostic push
-  #pragma GCC diagnostic ignored "-Wuninitialized"
+  // #pragma GCC diagnostic push
+  // #pragma GCC diagnostic ignored "-Wuninitialized"
   res.v = _mm_loadl_pi(res.v, (const __m64*)&from);
-  #pragma GCC diagnostic pop
+  // #pragma GCC diagnostic pop
 #else
   res.v = _mm_loadl_pi(res.v, (const __m64*)&from);
 #endif

inst/include/Eigen/src/Core/util/DisableStupidWarnings.h

@@ -37,20 +37,20 @@
 #elif defined __clang__
   // -Wconstant-logical-operand - warning: use of logical && with constant operand; switch to bitwise & or remove constant
   //     this is really a stupid warning as it warns on compile-time expressions involving enums
-  #ifndef EIGEN_PERMANENTLY_DISABLE_STUPID_WARNINGS
-    #pragma clang diagnostic push
-  #endif
-  #pragma clang diagnostic ignored "-Wconstant-logical-operand"
-  #if __clang_major__ >= 3 && __clang_minor__ >= 5
-    #pragma clang diagnostic ignored "-Wabsolute-value"
-  #endif
+  // #ifndef EIGEN_PERMANENTLY_DISABLE_STUPID_WARNINGS
+  //   #pragma clang diagnostic push
+  // #endif
+  // #pragma clang diagnostic ignored "-Wconstant-logical-operand"
+  // #if __clang_major__ >= 3 && __clang_minor__ >= 5
+  //   #pragma clang diagnostic ignored "-Wabsolute-value"
+  // #endif
 
 #elif defined __GNUC__ && __GNUC__>=6
 
-  #ifndef EIGEN_PERMANENTLY_DISABLE_STUPID_WARNINGS
-    #pragma GCC diagnostic push
-  #endif
-  #pragma GCC diagnostic ignored "-Wignored-attributes"
+  // #ifndef EIGEN_PERMANENTLY_DISABLE_STUPID_WARNINGS
+  //   #pragma GCC diagnostic push
+  // #endif
+  // #pragma GCC diagnostic ignored "-Wignored-attributes"
 
 #endif