Vendor import of Gavin Howard's bc version 3.2.6

(cherry picked from commit 47a52dc4d48f259ab7d9f9ba6b65f4f2331a22dc)

Second attempt after revert of a previous commit that affected files
with similar names in unrelated directories.

Thanks go to Martin Birgmaier for reporting the issue and identifying
the cause of git getting confused: files from the root of the vendor
files were associated with files in the FreeBSD base root directory.

Martin Birgmaier points out that to make this cherry-pick succeed,
the option -Xsubtree=contrib/bc has to be passed to prevent files
outside that path to be considered.

1 files changed, 339 insertions, 0 deletions

diff --git a/contrib/bc/tests/fuzzing/bc_inputs3/01.txt b/contrib/bc/tests/fuzzing/bc_inputs3/01.txt
new file mode 100644
index 000000000000..c016263a9381
--- /dev/null
+++ b/contrib/bc/tests/fuzzing/bc_inputs3/01.txt
@@ -0,0 +1,339 @@
+a(s001020001l[ba])
+scal[ ca]
+a
+a
+e
+cs
+c
+
+a
+s(scal[ ba])
+scal[ ca]
+u
+a
+e
+cs
+c
+
+a
+s(scal[ ba])
+scal[ ca]
+u
+a
+s
+c = l[ ca]
+a
+a
+sa
+e
+cs
+c
+
+a(s001020001l[ ba])
+scal[ ca]
+a
+a
+e
+cs
+c
+
+a
+s(scal[ ba])
+scal[ ca]
+a
+a
+s
+c = l[ ca]
+a
+s
+c = l[ ca]
+a(s001020001l[ ba])
+a
+e
+cs
+c
+
+a
+s(scal[ ba])
+scal[ ca]
+u
+a
+s
+c = l[ ca]
+a
+a
+sa
+e
+cs
+c
+
+a(s001020001l[ ba])
+scal[ ca]
+a
+a*e
+cs
+c
+
+a
+s(scal[ ba])
+scal[ ca]
+a
+a
+s
+c = l[ ca]
+a
+a
+sa
+e
+css
+c = c[ ca]
+a
+a
+sa
+e
+cs
+a
+a
+sa
+e
+cs
+c
+
+a(s001020001l[ ba])
+ cs
+c = l[ ca]
+a
+a
+sa
+e
+cs
+c
+
+a(s001020001l[ ba])
+scal[ ca]
+a
+a
+e
+cs
+c
+
+a
+s(scal[ ba])
+scal[ ca]
+a
+a
+s
+c = l[ ca]
+a
+a
+sa
+e
+css
+c = l[ ca]
+a
+a
+sa
+e
+cs
+a
+b
+sa
+e
+cs
+c
+
+a(s001020001l[ ba])
+scal[ ca]
+a
+a
+e
+cs
+
+scal[ ca]
+a
+a
+e
+cs
+c
+
+a
+s(scal[ ba])
+scal[ ca]
+u
+a
+s
+c = l[ ca]
+a
+a
+sa
+e
+cs
+c
+
+a(s001020001l[ ba])
+scal[ ca]
+a
+a
+e
+cs
+c
+
+a
+s(scal[ ba])
+scal[ ca]
+a
+a
+s
+c = l[ ca]
+a
+a
+sa
+e
+css
+c = l[ ca]
+a
+a
+sa
+e
+cs
+a
+a
+sa
+e
+cs
+c
+
+a(s001020001l[ ba])
+sc0
+c = l[ ca]
+a
+a
+sa
+e
+cs
+c
+
+a(s001020001l[ ba])
+scal[ ca]
+a
+a
+e
+cs
+c
+
+a
+s(scal[ ba])
+s(1)
+sd= 20
+a(0)
+a=i-=se-=as0-=se-=as0-=i-=s-=se-=xse!=e-=as=ase-=se-=as-=ase-=se-=as-=se-=a(1)
+s0000^aaaaaaaaaaaaaaa20
+a(0)
+a=i-=se-=ase-=se-=ase-=i-=s-=se-=xse!=e-=as=ase-=se-=as-=a00-=se-=as-=se-=axse!=e-=ase-=i-=se-=ase-=se-=se-=ase-=se-=as-=e-=as=ase-=se-=as-=as=i-=se-=ase-=se-=se-=ase-=se-=as-=e-=as=ase-=se-=as-=ase-=se-=as-=se-=a(1)
+scscales=ase-=se-=as-=ase-=se-=as-=se-=a(1)
+scscale ==se-=a(1)
+sd= 20
+a(0)
+a=i-=se-=ase-=se-=ase-=i-=s-=se-=xse!=e-=as=ase-=se-=as-=ase-=se-=as-=se-=a(1)
+scale ==se-=a(1)
+scale = 20
+a(0)
+a==se-=as+=ase-=se8=as-=se-=a(1)
+s ==se-=a(1)
+scale = 20
+a(0)
+a=i-=se-=ase-=se-=ase-=i-=se-=xse!=e-=ase-=i-=se-=ase-=se-=se-=ase-=se-=as-=e-=as=ase-=se-=as-=ase-=se-=as-=se-=a(1)
+scscale ==se-=a(1)
+scale = 20
+a(0)
+a=i-=se-=ase-=se-=ase-=i-=s-=se-=xse!=e-=se-=a(1)
+scale = 20
+a(0)
+a=i-=se-=ase-=se-=ase-=i-=s-=se-=xse!=e-=a0=as-=ase-=se-=se0=ase-=se-=as-=e-=as=ae-=a(1)
+sc= 20
+a(0)
+a=i-=se-=ase-=se-=ase-=i-=se-=xse!=e-=ase-=i-=se-=ase-=se-=se-=ase-=se-=as-=e-=as=ase-=se-=as-=ase-=se-=as-=se-=a(1)
+scscale ==se-=a(1)
+sd= 20
+a(0)
+a=i-=se-=ase-=se-=ase-=i-=s-=se-=xse!=e-=as=ase = 20
+a(0)
+a=i-=se-=ase-=se-=ase-=s-=e-=as=ase-=se-=as-=ase-=se-=as-=se-=a(1)
+scscale ==se-=a(1)
+scale = 20
+a(0)
+a=i-=se-=ase-=se-=ase-=i-=s-=se-=xse!=e-=a0=as-=ase-=se-=se0=ase-=se-=as-=e-=as=ase-=se-=as-=ase-=se-=as-=se-=a(1)
+scscale ==se-=a(1)
+scale = 20
+a(0)
+a=i-=se-=ase-=se-=ase-=i-=s-=se-=xse!=e-=a0=ase-=se-=as-=ase-=se-=as-=se-=a(1)
+scale ==se-=a(1)
+scale = 20
+a(0)
+a=i-=se-=ase-=se-=ase-=i-=se-=xse!=e-=ase-=i-=se-=ase-=se-=se-=ase-=se-=as*=e-=as=aaaaaaaaaaaaaaaaaaaaaaa^aaaaaaaaaaaaaaa20
+a(0)
+a=i-=se-=ase-=se-=as0-=i-=s-=se-=xse!=e-=as=ase-=se-=as-=as0-=se-=as-=se-=axse!=e-=ase-=i-=se-=as0-=se-=se-=ase-=se-=as-=e-=as=ase-=se-=a0-=a0=i-=se-=as0-=se-=se-=ase-=se-=as-=e-=as=as0-=se-=as-=ase-=se-=as-=se-=a(1)
+scscale ==ss0-=ase-=s-=e-=as=ase-=se-=as-=ase-=se-=as-=se-=a(1)
+scscale ==se-=a(1)
+scale = 20
+a(0)
+a=i-=se-=ase-=se-=ase-=i-=s-=se-=xse!=e-=as=as-=ase-=se-=se0=ase-=se-=as-=e-=as=a000=se-=as-=ase-=se-=as-=se-=a(1)
+scscale ==se-=a(1)
+scale = 20
+a(0)
+a=i-=se-=as0-=se-=as0-=i-=s-=se-=xse!=e-=a0=ase-=se-=as-=ase-=se-=as-=se-=a(1)
+scale ==se-=a(1)
+scale = 20
+a(0)
+a=i-=se-=ase-=se-=ase-=i-=se-=xse!=e-=ase-=i-=se-=ase-=se-=se-=ase-=se-=a0-=e-=as=aaaaaaaaaaaaaaaaaaaaaaa^aaaaaaaaaaaaaaa20
+a(0)
+a=i-=se-=ase-=se-=ase-=i-=s-=se-=xse!=e-=as=ase-=se-=as-=ase-=se-=as-=se-=axse!=e-=ase-=i-=se-=as0-=se-=se-=ase-=se-=as-=e-=as=as0-=se-=as-=as=i-=se-=ase-=se-=se-=ase-=se-=as-=e-=as=ase-=se-=as-=ase-=se-=as-=se-=a(1)
+scscale ==se-=a(1)
+scale = 20
+a(0)
+a=i-=se-=as0-=se-=ase-=i-=s-=se-=xse!=e-=as=ase-=se-=as-=ase-=se-=as-=se-=a(1)
+scale ==se-=a(1)
+scale = 20
+a(0)
+a=i-=se-=as0-=as-=as0-=se-=as-=as0
+a(0)
+a=i-=se-=as0-=se-=as0-=i-=s-=se-=xse!=e-=as=as0-=se-=as-=ase-=se-=as-=se-=a(1)
+scale ==se-=a(1)
+scale = 20
+a(0)
+a=i-=se-=as0-=se-=ase-=i-=se-=xse!=e-=ase-=i-=se-=as0-=se-=se-=as0-=a0a^aaaaaaaaaaaaaaa20
+a(0)
+a=i-=se-=ase-=se-=ase-=i-=s-=se-=xse!=e-=as=ase-=se-=as-=ase-=se-=as-=se-=axse!=e-=ase-=i-=se-=ase-=se-=se-=ase-=se-=a0-=e-=as=ase-=se-=as-=as=i-=se-=ase-=se-=se-=ase-=se-=as-=e-=as=ase-=se-=as-=ase-=se-=as-=se-=a(1)
+scscales=ase-=se-=as-=ase-=se-=as-=se-=a(1)
+scscale ==se-=a(1)
+sd= 20
+a(0)
+a=i-=se-=ase-=se-=ase-=i-=s-=se-=xse!=e-=as=ase-=se-=as-=ase-=se-=as-=se-=a(1)
+de ==se-=a(1)
+scale = 20
+a(0)
+a==se-=as-=ase-=se0=as-=se-=a(1)
+s ==se-=a(1)
+scale = 20
+a(0)
+a=i-=se-=ase-=se-=ase-=i-=se-=xse!=e-=ase-=i-=se-=ase-=se-=se-=ase-=se-=as-=e-=as=ase-=se-=as-=ase-=se-=as-=se-=a(1)
+scscale ==se-=a(1)
+scale = 20
+a(0)
+a=i-=se-=ase-=se-=ase-=i-=s-=se-=xse!=e-=se-=a(1)
+scale = 20
+a(0)
+a=i-=se-=ase-=se-=ase-=i-=s-=se-=xse!=e-=as=as-=ase-=se-=se0=ase-=se-=as-=e-=as=ae-=a(1)
+sc= 20
+a(0)
+a=i-=se-=ase-=se-=ase-=i-=se-=xse!=e-=ase-=i-=se-=ase-=se-=se-=ase-=se-=as-=e-=as=ase-=se-=as-=ase-=se-=as-=se-=a(1)
+scscale ==se-=a(1)
+sd= 20
+a(0)
+a=i-=se-=ase-=se-=ase-=i-=s-=se-=xse!=e-=as=ase = 20
+a(0)
+a0i-=se-=ase-=se-=ase-=s-=e-=as=ase-=se-=as-=ase-=se-=as-=se-=a(1)
+scscale ==se-=a(1)
+scale = 20
+a(0)
+a=i-=se-=ase-=se-=ase-=i-=s-=se-=xse!=c-=a0=as-se-=se-=se0=ase-=se-=as-=e-=as=ase-=se-=as-=ase-=se-=as-=se-=a(1)