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8184338: switch minimum supported gcc version to 4.7

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Reviewed-by: erikj, tbell
This commit is contained in:
Matthias Baesken 2017-07-18 14:42:03 -07:00
parent 618b1dbbfb
commit 6345c8d07c
3 changed files with 5 additions and 8 deletions
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4
common/autoconf/generated-configure.sh
View File

@ -5014,7 +5014,7 @@ TOOLCHAIN_DESCRIPTION_xlc="IBM XL C/C++"
# Minimum supported versions, empty means unspecified
TOOLCHAIN_MINIMUM_VERSION_clang="3.2"
TOOLCHAIN_MINIMUM_VERSION_gcc="4.3"
TOOLCHAIN_MINIMUM_VERSION_gcc="4.7"
TOOLCHAIN_MINIMUM_VERSION_microsoft="16.00.30319.01" # VS2010
TOOLCHAIN_MINIMUM_VERSION_solstudio="5.13"
TOOLCHAIN_MINIMUM_VERSION_xlc=""
@ -5193,7 +5193,7 @@ VS_SDK_PLATFORM_NAME_2013=
#CUSTOM_AUTOCONF_INCLUDE
# Do not change or remove the following line, it is needed for consistency checks:
DATE_WHEN_GENERATED=1500048914
DATE_WHEN_GENERATED=1500410254
###############################################################################
#

2
common/autoconf/toolchain.m4
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@ -52,7 +52,7 @@ TOOLCHAIN_DESCRIPTION_xlc="IBM XL C/C++"
# Minimum supported versions, empty means unspecified
TOOLCHAIN_MINIMUM_VERSION_clang="3.2"
TOOLCHAIN_MINIMUM_VERSION_gcc="4.3"
TOOLCHAIN_MINIMUM_VERSION_gcc="4.7"
TOOLCHAIN_MINIMUM_VERSION_microsoft="16.00.30319.01" # VS2010
TOOLCHAIN_MINIMUM_VERSION_solstudio="5.13"
TOOLCHAIN_MINIMUM_VERSION_xlc=""

7
common/doc/building.md
View File

@ -392,11 +392,8 @@ issues.
### gcc
The minimum accepted version of gcc is 4.3. Older versions will not be accepted
by `configure`.
However, gcc 4.3 is quite old and OpenJDK is not regularly tested on this
version, so it is recommended to use a more modern gcc.
The minimum accepted version of gcc is 4.7. Older versions will generate a warning
by `configure` and are unlikely to work.
OpenJDK 9 includes patches that should allow gcc 6 to compile, but this should
be considered experimental.