Fix Julia v0.6 compatibility

.travis.yml

@@ -10,18 +10,18 @@ julia:
   - 1.0
   - nightly
 
-## uncomment the following lines to allow failures on nightly julia                         
+## uncomment the following lines to allow failures on nightly julia
 ## (tests will run but not make your overall status red)
 matrix:
   fast_finish: true
   allow_failures:
     - julia: nightly
 
-## uncomment the following lines to override the default test script                        
+## uncomment the following lines to override the default test script
 #script:
 #  - julia -e 'Pkg.clone(pwd()); Pkg.build(\"${JL_PKG}\"); Pkg.test(\"${JL_PKG}\"; coverage=    true)'
-  
+
 # push coverage results to Coveralls and Codecov
 after_success:
-  - julia -e "VERSION >= v\"0.7.0-DEV.5183\" && using Pkg; cd(\"${TRAVIS_BUILD_DIR}\"); Pkg.    add(\"Coverage\"); using Coverage; Coveralls.submit(Coveralls.process_folder())"
-  - julia -e "VERSION >= v\"0.7.0-DEV.5183\" && using Pkg; cd(\"${TRAVIS_BUILD_DIR}\"); Pkg.    add(\"Coverage\"); using Coverage; Codecov.submit(Codecov.process_folder())"
+  - julia -e "VERSION >= v\"0.7.0-DEV.5183\" && using Pkg; cd(\"${TRAVIS_BUILD_DIR}\"); Pkg.add(\"Coverage\"); using Coverage; Coveralls.submit(Coveralls.process_folder())"
+  - julia -e "VERSION >= v\"0.7.0-DEV.5183\" && using Pkg; cd(\"${TRAVIS_BUILD_DIR}\"); Pkg.add(\"Coverage\"); using Coverage; Codecov.submit(Codecov.process_folder())"

src/TikhonovSamarskii.jl

@@ -1,7 +1,10 @@
 module TikhonovSamarskii
-if VERSION >= v"0.6-"
+@static if VERSION >= v"0.6-"
     import SpecialFunctions: erf
 end
+@static if VERSION < v"0.7-"
+    using Compat: range
+end
 
 import Base.FastMath: sqrt_fast