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-rw-r--r--gnu/packages/engineering.scm4
1 files changed, 2 insertions, 2 deletions
diff --git a/gnu/packages/engineering.scm b/gnu/packages/engineering.scm
index 169d912c35..d1626f0342 100644
--- a/gnu/packages/engineering.scm
+++ b/gnu/packages/engineering.scm
@@ -1546,7 +1546,7 @@ unique design feature of Trilinos is its focus on packages.")
`(#:tests? #f
#:configure-flags
(list
- "CXXFLAGS=-O3 -std=c++11"
+ "CXXFLAGS=-O3"
(string-append "ARCHDIR="
(assoc-ref %build-inputs "trilinos")))))
(native-inputs
@@ -1586,7 +1586,7 @@ parallel computing platforms. It also supports serial execution.")
(arguments
`(,@(substitute-keyword-arguments (package-arguments xyce-serial)
((#:configure-flags flags)
- `(list "CXXFLAGS=-O3 -std=c++11"
+ `(list "CXXFLAGS=-O3"
"CXX=mpiCC"
"CC=mpicc"
"F77=mpif77"